I could have turned to Mr. Smith for help, but he ______ too busy then.
#104216
A
is
B
was
C
should be
D
has been
推荐题目
 As she _____ the newspaper, Granny _____ asleep.
#104166
A
read ; was falling  
B
was reading; fell
C
was reading; was falling
D
read; fell
At this time next week ______________ the English Channel.
#100500
A
I’ll cross
B
I’ll be crossing
C
I’m to cross
D
I’m going to cross