單項選擇題（）they are doing has never been done before.

A. That
B. What
C. Why
D. Whether


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1.單項選擇題（）I enjoy most is（）I can have a holiday from work.

A.That;that
B.That;what
C.What;what
D.What;that

2.單項選擇題Before I got to the cinema, the film（）

A.had begun
B.has begun
C.is begun
D.was beginning

3.單項選擇題The play（）already（）when we got to the theatre.

A.has;tarted
B.was;tarted
C.have;started
D.had;started

4.單項選擇題Before she began to study at Beijing University, she（）in a factory for five years.

A.had worked
B.worked
C.has worked
D.would work

5.單項選擇題Those cakes look nice. Can I have（）?

A. one
B. it
C. – (不填)
D. one cake