If the government ___ an import fee as it has threatened to do for years, prices of consumer goods will increase by at least 10%.
(A) imposes
(B) has imposed
(C) will impose
(D) is imposing

答案：登入後查看
統計： A(254), B(32), C(8), D(3), E(0) #413853

詳解 (共 2 筆)

#683641
if 的用法：
1. 可能會發生的事實、可能已發生的事實
主要句子如是現在的事情，就用現在式；如是過去的事情，就用過去式；如是未來的事情，就用未來式。
e.g.
If the weather is bad, I will not go out tomorrow.

2. 與事實相反、不可能的假設
be動詞為過去式，句子為過去完成式
e.g.
If the weather had been good, I would have gone shopping.

此題後面「prices of consumer goods will increase by at least 10%」是為未來式，所以前面空格應填現在式，表示可能會發生的事情

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#636365

 impose 徵收

import fee 進口費用

threaten  威脅

consumer goods 消費品

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