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
 I am disappointed because I ________my favourite writer yet.
#99912
A
didn’t see
B
haven’t seen
C
don’t see
D
have not been seeing
---Have you moved into the new house?  ---Not yet, the rooms ___.
#103979
A
are being painted
B
are painting
C
are painted
D
are being painting
--Is your dad at home? --No, he_________ out. 
#99516
A
goes
B
has gone
C
will go
D
is going