541.Cathy is taking notes of the grammatical rules in class at Sunshine School,where she _______ English for a year.
A.studies
B.studied
C.is studying
D.has been studying
542.I _______ there little more than a week when I sat to work with the scientist.
A.would be
B.have been
C.had been
D.will be
541.答案是D;此处表示Cathy从过去开始在此学习，直到现在，还可能继续学下去。
542.答案是C;主句be动作发生在set之前，即过去的过去，故用过去完成时。
