It is _____ he often fails in exams____ makes his parents worried about him.
#84877
A
because；that
B
that；that
C
不填；that
D
what；that
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Was it because of the bad weather _____ the sports meeting had to be put off till next Friday?
#85347
A
why
B
what
C
that
D
which
Mr. Mike doesn’t understand ________ made his wife so upset this morning.
#85428
A
what was it
B
why it was that
C
how that was
D
what it was that
—____ you got to know my telephone number? —Through a friend of yours.
#85120
A
What was it that
B
How did
C
Where was it
D
How was it that
I must find out why＿＿＿＿so many students made the same mistake.
#84856
A
is it that
B
was it which
C
it is what
D
it was that