问题补充：
It is said there two basketball matches on TV this Saturday.
A. are going to have
B. is going to be
C. were going to be
D. are going to be
答案：
A. are going to have
B. is going to be
(答案→)C. were going to be
D. are going to be
解析：there were going to be，表示there be 的过去将来时，故选C
