---Why didn’t you go to yesterday’s meeting?---I would have but I ______ too busy working on the important experiment.
#104208
A
had been
B
was
C
were
D
am
推荐题目
Neither we nor our father       playing tennis.
#102719
A
like
B
likes
C
is liking
D
are liking
Have you seen my dog? I _________ for it and still haven’t found it. 
#103475
A
looked
B
was looking
C
have been looking
D
had been looking