______ halfway through the exercise, the teacher changed his mind and collected all our papers.
#70292
A
When only being
B
When we were only
C
Being only
D
Having been
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All the bees had been at nearby feeding place were doing the circling dance.
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A
which
B
what
C
that
D
how
Evdence has been found through years of study children’s early sleeping problem are likely to continue when they grow up.
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A
why
B
how
C
whether
D
that
_______ is the most useful invention?
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A
Do you think which of these
B
Which of these do you think
C
Which of these you think
D
You think which of these
Can you make sure ______the gold ring?
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A
where Alice had put
B
where had Alice put
C
where Alice has put
D
where has Alice put
Mark needs to learn Chinese _______ his company is opening a branch in Beijing.
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A
unless
B
until
C
although
D
since