—Did Jack come back early last night?—Yes,it was not yet eight o’clock_______he arrived home.
#72308
A
why
B
when
C
that
D
which
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They have no idea at all  ________. 
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A
where has he gone
B
where did he go
C
which place he has gone
D
where he has gone
On the table she found a piece of paper _______ some confusing symbols.
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A
which was written
B
that was written
C
on which were written
D
on that was written