来自贾利民的问题
【Itisimportant_________English.A.learningB.tolearnC.havinglearnedD.tohavelearnedtolearn我想问下为什么不能用A.learning作主语?】
Itisimportant_________English.
A.learning
B.tolearn
C.havinglearned
D.tohavelearned
tolearn我想问下为什么不能用A.learning作主语?
1回答
2020-12-27 05:24