The best way of ______ the problem is to ask the teacher for help.
A. dealing with B. taking off
C. looking up D. sticking to
--- I saw Helen in the school just now.
--- It ______ be Helen. She has gone to the shopping center with her sister.
A. needn’t B. shouldn’t
C. can’t D. mustn’t
Our classroom ______ every day. We can study comfortably in it.
A. clean B. cleans
C. is cleaned D. was cleaned
My English teacher is very ______ because he always explains problems over and over again.
A. serious B. friendly
C. hard-working D. patient
He is the boy ______ likes playing basketball very much.
A. which B. who C. whom D. whose
Jim still went to school ______ what happened yesterday.
A. even though B. no matter
C. as long as D. so that
