Watching TV too much ________bad for you eyes.
A. are        B. was       C. i

Mr. Wang often says to her child, “You _______ play with fire(火). It’s dangerous.”
A. mustn’t
B. had better
C. needn’t

When he walked _______ my desk, he knocked my books _______ the floor.

It took me two weeks          reading the novels written by Guo Jingming.

She often plans        something to help others.
A、to do      B、do     C、doing

They have ______ their homework already.

—I lost my dictionary. —Let me ______ you look for it.

- So far, our country _____ a lot.
- Yes, I agree with you.

The mobile phone has influenced people’s life a lot since it ________.

Betty        to represent our school to take part in the Maths Olympics.