The hottest continent, Africa has a lot of resources, ______ are still undeveloped.
A. many of them B. many of whom C. many of it D. many of which
----when are you going off for your holiday?
----My plane ______ at 9:20, so I must be at the airport by 8:20.
A. took off B. has taken off
C. is taking off D. would take off
After the teacher called him into the office, the boy admitted _______ in the test.
A. to cheat B. cheated C. cheat D. cheating
It was in Beihai Park _____ they made a date for the first time ______ the old couple told us their love story.
A. where; that B. that; that C. where; when D. that; when
.Only when your identity has been checked ________.
A. you are allowed in B. you will be allowed in C. will you allow in D. will you be allowed in
More and more people are beginning to _____ importance to living a low-carbon(低炭) life.
A. inspect B. attach C. express D. earn
