The river _____ banks used to be covered with fruit trees and flowers is now seriously polluted.
A.of which | B.along which | C.where | D.whose |
I regret _____ hard at school, or I would have succeeded in passing the exam.
A.not to work | B.having not worked | C.to have not worked | D.not having worked |
. We should prevent such a silly mistake _____ again.
A.occurring | B.to occur | C.to be occurred | D.from being occurred |
_____ full preparations, we decided to put off the meeting till next week.
A.We did not make | B.Having not made | C.We had not made | D.Not having made |
I’m examining the article he has just finished _____ the possible mistakes in it.
A.being corrected | B.to correct | C.corrected | D.having corrected |
Having passed all the tests, she felt a great weight _____ off her mind.
A.taking | B.taken | C.take | D.to be taken |