题目内容
（请给出正确答案）
A、hold up
B、keep up
C、stir up
D、come up
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更多“It is difficult to ______ a co…”相关的问题
A.difficult
B.the difficult
C.more difficult
D.the most difficult
Is it difficult to learn to()Tai Chi？
A.do
B.play
C.go
It is very difficult to give ______ smoking.
A．in
B．up
C．off
D．out
It is difficult to distinguish one twin ______ the other.
A．to
B．by
C．for
D．from
A.obscure
B. difficult
C. impossible
D. unable
It is difficult ______ a world record and even more difficult to ______ it.
A．keeping, set
B．keep, set
C．set, keep
D．to set, keep
Both of themhavean uncommon ability to deal with difficult people.
[A] strong and determined
[B] rough and violent
[C] difficult, demanding
