问题
选择题
Several days has passed_______the air crash(空难) happened.
A.since B.after C.as
答案
答案:A
考察介词。A.自……以来B.从……以后 C.随着……、当……时候。根据题意自从空难发生以来,几天已经过去了。选A。
Several days has passed_______the air crash(空难) happened.
A.since B.after C.as
答案:A
考察介词。A.自……以来B.从……以后 C.随着……、当……时候。根据题意自从空难发生以来,几天已经过去了。选A。