--David, are you 1istening to me?--Sorry, Dad. I _______ to make sense of what the reporter said. 
#100634
A
was trying
B
have tried
C
am trying
D
tried
推荐题目
 —Why don’t we choose that road to save time?—The bridge to it _____________.
#100093
A
has repaired
B
is repaired
C
is being repaired
D
will be repaired
Ladies and gentlemen, please fasten your seat belts. The plane _________.
#102384
A
is taking off
B
takes off
C
has taken off
D
will be taken off
Hurry up, kids! The school bus _______ for us!
#100583
A
waits
B
was waiting
C
waited
D
is waiting