The carpet has so many stains on it that it needs（ ）.
A、
replace
B、
to replace
C、
being replaced
D、
to be replaced
【正确答案】：D
【题目解析】：
本题考查need用法。
当主语是物时，need的用法：sth. need doing或sth. need to be done，可以直接表被动。
句意：地毯上的污渍太多了，需要更换。
所以本题选D。
The carpet has so many stains on it that it needs（ ）.
The carpet has so many stains on it that it needs（ ）.
replace
to replace
being replaced
to be replaced
本题考查need用法。
当主语是物时，need的用法：sth. need doing或sth. need to be done，可以直接表被动。
句意：地毯上的污渍太多了，需要更换。
所以本题选D。