Someone     my umbrella. It’s wet and it was wet in the last few days.
#100419
A
was using
B
must have used
C
has been using
D
has used
推荐题目
We had hoped to catch the 10:20 train, but _____ it was gone.
#103722
A
found
B
had found
C
would find
D
would have found
  The teacher tells his students to read the novel over and over again until they ______ it.
#104143
A
understand  
B
understood
C
have understood
D
have been understood
We _____ to move but are still considering where to go to. 
#104481
A
are deciding
B
decided
C
have decided
D
had decided