26．Guangzhou was the second Chinese city to host the Asian Games because Beijing ________ the event before.
A. had held B. was held
C. held D. had been held
[解析]句意：广州是第二个举办亚运会的中国城市，因为北京以前也举办过。由语境可知，“北京举办亚运会”应发生在广州举办亚运会之前，即过去的过去，故应用过去完成时，A项正确。
[答案]A
27．I was just going to move away the heavy case but someone ________ it. Was it you?
A. has done B. would do
C. had done D. will do
[解析]句意：我正打算挪走那个重箱子，但是已经有人挪走了(had done)。是你吗？由句子中的时态 was 可知：有人挪走箱子(had done)发生在我计划挪(was going to move)箱子之前，故此选择 had done 过去完成时。
[答案]C
