2019年mba考试英语模拟题——其他403

{01}Chang’e­2 did many experiments, ______ I think are of much help for knowing space
A.which
B.what
C.when
D.where
解析：试题分析：考查定语从句。“嫦娥二号”做了许多试验，我认为这些试验对人们了解太空很有帮助。I think是插入语，可忽略，定语从句缺少主语，排除C、D；what不引导定语从句。故选A。
考点：考查定语从句
本题选A。
{02}The emergency required that all the tasks _____ at least two days ahead of time．
A.to complete
B.should complete
C.be completed
D.should have been completed
解析：考查虚拟语气。句意：紧急需要要求所有任务必须最少提前两天完成。“should+have+done”意思是“本来应该做某事，而实际没做。Task是被完成的对象，故用被动语态，选C。
本题选C。