--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
 Oh, much smoke here! Somebody ________ the window, please.
#99446
A
opens
B
open
C
shall open
D
will open
I noticed that my grandmother was very upset when I told her about the accident,so I wished I  it to her.
#103954
A
did not mention
B
have not mentioned
C
do not mention
D
had not mentioned
If he _______, don’t interrupt him.
#102446
A
still works
B
is still working
C
still had been working
D
will still be working