________ cloning may be used for medical treatment, everyone doesn’t support it.
A. While B. As
C. Since D. Unless
I dislike ________when Jim said the UN was not a worthy organization, ________ bringing everyone closer together.
A. one; one B. it; one
C. one; which D. it; which
This winter vocation, my family are going to visit the Great Wall, but I would rather we ________ to Shanghai Disneyland.
A. go B. had gone
C. would go D. went
On this year’s Single’s day, the Tmall Site smashed the 10 billion-yuan threshold in just two minutes and five seconds, ________ last year’s record of 3 minutes and one second.
A. to break B. breaking
C. having broken D. being broken
The more petrol and electricity we consume, the more carbon we will ________.
A. let off B. put off
C. pay off D. take off
I ________ more careful in that quiz. I made too many stupid mistakes.
A. must be B. could have been
C. must have been D. could be
