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

1. The only way of **crossing** the river is by **swimming**.
2. But I am too terrified to **do** it because I don't know how to **swim**.
3. Please come on time. I hate **being** kept **waiting**.
4. If you **read** the instructions carefully, you will **answer** all the questions of the exam last week.
5. When I **met** him six years ago, he **worked** as a director for three years already.
6. I am not used to **getting** up early. I’d rather **stay** in bed a bit longer.
7. While I **was going** out of the office, I **saw** a familiar face.
8. He says he doesn’t remember to **promise** to **help** you.
9. I can’t help **feeling** sorry for the hungry children. If only there **were** peace in the world!
10. He **died** of cancer last year. He must **have smoked** a lot.