— Tom is never late for work. Why is he absent today ?— Something _______ to him. 
#90568
A
must happen
B
should have happened
C
could have happened
D
must have happened
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________ your letter, I would have started off two days ago.
#87250
A
If I received
B
Should I receive
C
If I could have received
D
Had I received
I _____ have written to him because he phoned me shortly afterwards.
#90086
A
ought to
B
must
C
couldn’t
D
needn’t
——You didn’t invite Mary to the ball? ——____ her, too?
#89330
A
Must I invite
B
Should I have invited
C
Must I have invited
D
Should I invite
But for the help of my English teacher,I________the first prize in the English Writing Competition.
#87062
A
would not win
B
would not have won
C
would win
D
would have won