—_______ do you clean your room?— Every day. 
#77537
A
How long
B
How many
C
How often
D
How soon
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I was really anxious about you. You______ home without a word.
#63295
A
mustn’t leave
B
shouldn’t have left
C
couldn’t have left
D
needn’t leave
— Happy birthday!— Thank you! It’s the best present I _______ for.
#63508
A
should have wished
B
must have wished
C
may have wished
D
could have wished