Stephen Hawking, ________ “the greatest genius of the late 20th century”, announced that there are really grey holes in the universe.
A. callingB. to callC. to be calledD. called
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
