-How much is the pair of shoes?-Twenty dollars ____ enough.A. is B. are C. am
—Would you mind looking after my dog while I'm on holiday?—____.
The tall man ____ wears a new coat is our new English teacher, isn't he?
—Tom wants to know if you ___ a picnic next Sunday.—Yes. But if it ___, we'll visit the museum instead.
— Mr. Lee ____ to a student when I entered the classroom this morning.-- He is very patient ____he is young.
— The doctor told me____ too much but I find it difficult.— The doctor is right. The less you drink, ____ you will be.