Don’t hesitate ______me if you have any questions.

The boy wanted to play football in the street, but his parents told him ______.
A. not to           B not to do             C. not do it            D. do not to

Readers can ______quite well without knowing the exact meaning of each word.

I know my brother well. Once he has made up his mind, nothing can change it, but instead I usually ____.

---Jimmy has had a lot of parties recently.
---Yes , that might _____ why he didn’t do well in the test.

They began to think about what use could be ______ such materials.

I ______ say he ______ speak to her in public at that time, for he was such a shy boy.

Although the number of competitors ___ limited, a number of our classmates ___ eager to take part in it.

- I wonder what you _________ me for a haircut.
-- $ 60 at least.

I was late for school this morning because the traffic was _________ by an accident.