题目内容
【题目】Having a trip abroad is certainly good for the old couple, but it remains _______whether they will enjoy it.
A. to see
B. to be seen
C. seeing
D. seen
【答案】B
【解析】see这个动作将要发生，而且it（形式主语）是该动作的承受者，所以不定式用被动形式。
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题目内容
【题目】Having a trip abroad is certainly good for the old couple, but it remains _______whether they will enjoy it.
A. to see
B. to be seen
C. seeing
D. seen
【答案】B
【解析】see这个动作将要发生，而且it（形式主语）是该动作的承受者，所以不定式用被动形式。