Daniel is one of those students who _______ always willing to help others .
#61678
A
is
B
are
C
was
D
were
推荐题目
The watch was_____________well.
#59131
A
work
B
working
C
doing
D
playing
He found           very difficult           the math problem.
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A
that;to solve
B
this;solving
C
it;to solve
D
it;solving
How long have you __________ this book?
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A
bought
B
borrowed
C
had
D
lent