问题补充:
-----Where you put the ruler? I can see it anywhere.
-----I put it right here. But now it is .
A. have, gone
B. did, missed
C. had ,going
D. will, missing
答案:
A. have, gone
B. did, missed
C. had ,going
D. will, missing
解析:
考察现在完成时态对现在的影响,missing丢失的不能用missed代替。