Dưới đây là dạng đúng của các động từ trong ngoặc:

1. The number of books on U.S universities **is** fifteen.
2. Either the President or the Vice **has** to sign the document.
3. The leaves on the pear tree **are** bright green.
4. Each of the restaurants **offers** its own unique blend coffee.
5. The president as well as the trustees **dislikes** the proposal.
6. Everybody in this class always **does** their homework.
7. Writing a lot of letters **makes** her tired.
8. The cattle **are gazing** in the field now.
9. The United States **lies** between Canada and Mexico.
10. Either you or he **is thinking** wrong.
11. All the books on the shelf **belong** to me.
12. Thanks to the anti-smoking campaign, the number of smokers in the country **has reduced**.
13. A large number of students in this school **speak** English quite fluently.
14. John, along with twenty friends, **is** planning a party.
15. The picture of the soldiers **brings** back many memories.