The terrible earthquake struck the southwest of the country last week, ________ 6 deaths and hundreds of injuries.
A. causingB. to causeC. causedD. having caused
It’s neither aliens nor a rare disease ________ will threaten the human race in the future, but climate change.
A. whetherB. whichC. whatD. that
According to the school rule, no student ________ go out during the class without the teacher’s permission.
A. couldB. needC. shallD. would
My brother wants to leave the company as it is ________ I would like to expand it.
A. unlessB. sinceC. beforeD. while
It will be very convenient to travel in this city when the underground ________ next year.
A. will be completedB. is completed
C. has completedD. would complete
________ with teens who spend much of their free time in front of TV sets, those who are physically active often have better grades.
A. ComparedB. To compareC. ComparingD. Having compared
