问题
选择题
It’s very hard ___________the swimming pool.
A．to swim across
B．to swim cross
C．swim across
D．swim cross
答案
答案：A
本题考查非谓语动词。It’s + adj + to do sth. across是介词，而cross是动词。句意：游过游泳池是非常困难的。
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