“______ did it start?” “About two days ago. ”
#55934
A
How long
B
How often
C
How much
D
When
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Mr. Zhou was really anxious _____he can’t find his car. 
#55718
A
while
B
because
C
though
D
until
Do you know _____ “hello” in French?
#56304
A
what to say
B
what can we say
C
how to say
D
how can we say