_________ that he had fallen behind, he tried to work harder.
A. Realize B. Realized C. To realize D. Having realized
The White family _____very large. All the family ______ animal lovers.
A. is; are B. is; is C. are; is D. are; are
The population of our country at present is ______ that 30 years ago.
A. as twice large as B. twice as large as C. twice as many as D. as twice much as
Turn on the TV or open a magazine ______ you will often see advertisements showing happy, balanced families.
A. but B. till C. and D. or
—Do you mind my smoking here?
—______. This is a non-smoking room here.
A. Yes, please B. Yes. Better not. C. No, thanks D. No. Good idea
At the class meeting, he made two suggestions, ______ were of great value.
A. all of them B. all of which C. both of them D. both of which
