What’s the matter? You looked unhappy.—Well, the teacher spoke so quickly and I can __________ understand it.

I think Tom is kind of unhealthy. — I agree with you. He ___ take exercises.

．It is said that a wooden bridge_________ over the river in the mountain village soon.

I didn’t know when he back. He said he would call me when he home.

She can hardly write her own name, ______?