He spent much time ______ English.[ ]
A. learning
B. learns
C. to learn
D. to learning
答案:A
下列各组词语中没有错别字的一组是 [ ]
A.落寞 猗郁 攀缘 栉风沐雨
B.桎梏 姣弱 瞥见 涸辙之鲋
C.葱茏 淅沥 蕈菌 卷秩浩繁
D.镶嵌 荫蔽 留连 凭心而论
数字微分纠正