Half an hour later, Lucy still couldn’t get a taxi _______ the bus had dropped her.
#29997
A
until
B
when
C
although
D
where
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Every time ______ they met, they would talk several hours together about the persons and things _______ they remembered in the middle school.
#32586
A
that; who
B
when; which
C
/; that
D
which; /
They were walking along the shore _______ a huge wave appeared out of nowhere, sweeping them out to sea.
#34229
A
as
B
while
C
when
D
though
_____earth scientists understand how and why earthquakes happen, forecasts are usually inaccurate.
#32029
A
As
B
While
C
Because
D
If
The government has taken some measures to solve the shortage of electricity , but it may be some time _________the situation improves.
#31957
A
since
B
when
C
before
D
unless