单项选择题
A.customers B.supporters C.guests D.clients
On（）side of the street there are some trees.A.both B....
单项选择题On（）side of the street there are some trees.
A.both B.either C.every D.all
Of all the students in our class, Betty writes（）A.very ...
单项选择题Of all the students in our class, Betty writes（）
A.very carefully B.most carefully C.more carefully D.the most carefully
Not until the meeting was over（）that he had made a mist...
单项选择题Not until the meeting was over（）that he had made a mistake in his speech.
A.he realized B.did he realize C.hehas realized D.has he realized
