You shouldn’t risk in the polluted river．A.to swimB.swimmingC.swimD.swam
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You shouldn’t risk ________ in the polluted river．
A.to swim
B.swimming
C.swim
D.swam
试题答案
B
risk doing sth．为习惯用语，“冒险做某事”。
You shouldn’t risk ________ in the polluted river．
A.to swim
B.swimming
C.swim
D.swam
B
risk doing sth．为习惯用语，“冒险做某事”。