Fill in the gaps to practise the use of the Complex Object (the verb is given in brackets at the end...

1. They saw him crossing the street.
2. We think him to have written a composition.
3. We think the composition to have been written by him.
4. The mother made her daughter translate the text.
5. The mother supposes the children to be watching TV.
6. The teacher supposes the students to be studying the material about the educational system in the country.
7. The teacher supposed the material about the educational system to be studied by the students.
8. Mary allowed the book to be put into the bookcase.
9. They expected him to pass the exam.
10. I know her to translate texts very well.

The Complex Object construction in English involves a verb in the main clause and an object followed by a verb in the infinitive or participle form. Here are the answers with explanations:

1. They saw him cross the street (to cross).

   Explanation: With verbs of perception like "see," we use the bare infinitive (without "to") or the present participle (-ing form). In this case, "cross" is the correct form.

2. We think him to be writing a composition (to write).

   Explanation: With verbs like "think," when expressing an ongoing action, we use the infinitive form with "to be" plus the present participle. Here, "to be writing" is the correct form.

3. We think the composition to have been written by him (to write).

   Explanation: When expressing a completed action in passive voice, we use the perfect infinitive form. Here, "to have been written" is the correct form.

4. The mother made her daughter translate the text (to translate).

   Explanation: With causative verbs like "make," we use the bare infinitive. Here, "translate" is the correct form.

5. The mother supposes the children to be watching TV (to watch).

   Explanation: With verbs like "suppose," when expressing an ongoing action, we use the infinitive form with "to be" plus the present participle. Here, "to be watching" is the correct form.

6. The teacher supposes the students to be studying the material about the educational system in the country (to study).

   Explanation: Again, when expressing an ongoing action, we use the infinitive form with "to be" plus the present participle. Here, "to be studying" is the correct form.

7. The teacher supposed the material about the educational system to have been studied by the students (to study).

   Explanation: When expressing a completed action in the past, we use the perfect infinitive form. Here, "to have been studied" is the correct form.

8. Mary allowed the book to be put into the bookcase (to put).

   Explanation: When using verbs like "allow," we use the passive infinitive form if the action is being done to the object. Here, "to be put" is the correct form.

9. They expected him to pass the exam (to pass).

   Explanation: With verbs like "expect," we use the full infinitive form. Here, "to pass" is the correct form.

10. I know her to translate texts very well (to translate).

    Explanation: When expressing a habitual or general ability, we use the infinitive form. Here, "to translate" is the correct form.

1. They saw him cross the street.
2. We think him to write a composition.
3. We think the composition to be written by him.
4. The mother made her daughter translate the text.
5. The mother supposes the children to watch TV.
6. The teacher supposes the students to study the material about the educational system in the country.
7. The teacher supposed the material about the educational system to be studied by the students.
8. Mary allowed the book to be put into the bookcase.
9. They expected him to pass the exam.
10. I know her to translate texts very well.