The teacher leaned against the desk ,____ speakA no able to B not_英语解答

The teacher leaned against the desk ,____ speak
A no able to B not able for C unable of D unable to

人气：138 ℃　时间：2020-02-03 01:33:25

解答

D able to do sth.固定用法,表示能做.
这里是老师倚着书桌,说不出话来.因此应该用unable to do 不能做.