单词适当形式填空
Lily is good at ( ).(sing)
应该是singing.动名词形式。
singing 词组be good at doing sth
singing, be good at doing sth
答:选C 做形容词时,mine可用于元音开头的名词前,代替my,如mine eyes详情>>
答:B 被动语态,be found to do. A中的made与found均为过去分词,冲突!详情>>
问:hArd work 和hArd--working有什么区别
答:一个是名词 一个是形容词撒详情>>