Wesuggestthattheyprovideaneffectivewarningsystemto

問題詳情：

We suggest that they provide an effective warning system to________many of the disasters________.

A．keep；happening

B．prevent；from happening

C．stop；from being happened

D．prevent；from being happened

【回答】

B　句意：我們建議他們提供有效的預*系統來阻止很多災難的發生。 doing...“阻止……做……”；g...“使……一直做……”；happen“發生”，無被動語態。故B項正確。

知識點：動詞

題型：選擇題