一 When did the computer crash?一 This morning, while I the reading materials downloaded from some websites.
#102121
A
have sorted
B
was sorting
C
am sorting
D
had sorted
推荐题目
To our great relief, Jack’s illness proved not to be as serious as we ___.
#99958
A
had feared
B
has feared
C
would fear
D
feared
Our teacher taught us that water ___ at zero degree centigtade.
#104492
A
freezes
B
freeze
C
freezed
D
is freezed
He works as an engineer now, but he _____ on a farm for three years.
#101493
A
has worked
B
worked
C
was working
D
had worked