-- I ________ to your birthday party last Sunday!-- Unfortunately, you were on business.
#87390
A
had come
B
came
C
would come
D
would have come
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I ______ through that bitter period without your generous help.
#87337
A
couldn’t have gone
B
didn’t go
C
wouldn’t go
D
hadn’t gone
“I know she was in because I heard her radio, but she didn’t open the door.” “She___the bell.” 
#88102
A
may not be hearing
B
may not have heard
C
must not have heard
D
must not be hearing
________, please try your best to solve the problem in time.
#86362
A
Ought you get into trouble
B
Must you get into trouble
C
Can you get into trouble
D
Should you get into trouble