The team finished the project one month ahead of time, really ______surprised all of us.
A. that
B. which
C. when
D. who
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It has been more than five years ______they met last time in Wuhan.
A. since
B. before
C. for
D. until
Here are some tips to help you stay safe when _____(use) ride-hailng apps.
If you couldn't keep the ______(appoint),please inform us as early as possible.
There is something wrong with the printer, and I'll have it _______(repair).