---I called you yesterday evening, but there was no answer.      ----- Oh, I’m sorry. I _____ dinner at a restaurant at that time.
#41871
A
have
B
had
C
was having
D
have had
推荐题目
When you are planting trees, the trees ________ straight in the hole.
#36844
A
must put
B
must be put
C
are putting
D
is put
Mr. Smith ____ the village since last year.
#42203
A
left
B
has left
C
has been away from
D
was away from
—Why didn’t you go to the movie yesterday? —Because I_________it before. 
#42506
A
had watched
B
have seen
C
have watched
D
had seen