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Huyền Trang Hoàng

1 my mother was afraid to the let boy ....... the tree A to risk climing B to risk to climb C risk climbing D risk to climb 2 You should give up ..... or you will die of cancer A smoke B to smoke C smoking D smoked 3 there is nothing prevent us from ....... the mystery of that place A disover b discovery c discovering d discoveries 4 mr.thomas does not allow people ....... in his office a smoke b to smoke c smoked d smoking

Linh Diệu
22 tháng 4 2017 lúc 12:33

1 my mother was afraid to let the boy ....... the tree

A to risk climing B to risk to climb C risk climbing D risk to climb

2 You should give up ..... or you will die of cancer

A smoke B to smoke C smoking D smoked

3 there is nothing prevent us from ....... the mystery of that place

A disover b discovery c discovering d discoveries

4 mr.thomas does not allow people ....... in his office

a smoke b to smoke c smoked d smoking


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