Miss Lee didn’t notice little Tom slide out of the classroom; she ________ something on the blackboard.
A. was writingB. wroteC. had writtenD. has written
Moyan was at ________ loss when he received ________ news that he had been awarded the Nobel Prize in literature.
A. the; theB. the; /C. a; theD. a; /
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
