Is this museum _______some German friends visited the day before yesterday?
#68179
A
which
B
that
C
where
D
the one
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 It was quite a serious accident, _____ caused by careless driving.
#72311
A
which I think was
B
I think which was
C
which I think it was
D
I think which it was
______ well, you need to have a good sense of balance. 
#67785
A
Danced
B
To dance
C
Dance
D
Dancing