明天考英语,In such a fierce competition,a person has to make ever
明天考英语,
In such a fierce competition,a person has to make every effort if he ______.
A.has succeeded B.is to succeed C.would succeed D.will succeed
You look very tired.You ____ late last night.
A.needn’t sit up B.didn’t need to sit up C.shouldn’t sit up D.needn’t have sat up