The question that puzzled them is ____ they can get rid of the air pollution in the area.
#84871
A
how is it that
B
that is how
C
what is that
D
how it is that
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It was ______ his office.
#84830
A
not until the rain stopped did he leave
B
not until did the rain stop that he left
C
not until the rain stopped when he left
D
not until the rain stopped that he left
– Do you know _____ yesterday ? – It was at 8 o’clock in the morning.
#85176
A
when did she come
B
when was it that she came
C
when she came
D
when it was that she came