The growing speed of a plant is influenced by a number of factors, ______ are beyond our control.
A. most of them B. most of what C. most of which D. most of that
______ Chief Engineer, as his family had expected, made his father happy and proud.
A. Mike being appointed B. Mike’s appointed
C. Mike appointing D. Mike’s being appointed
Storm chasing is so dangerous that some chasers are often hurt in accidents ______ by driving in a heavy rain.
A. having caused B. caused C. to be caused D. causing
Believe it or not, crying is a way you can imagine ______ pressure.
A. relieving B. to relieve C. relieved D. relieve
All the clothes donated by the citizens need cleaning thoroughly before being sent to the earth-stricken area, ______ ?
A. needn’t they B. don’t they C. didn’t they D. shouldn’t they
My friend has returned from the UK. She ______ at Oxford for four years, during which we communicated with each other on the Internet.
A. studied B. has studied C. had studied D. has been studying
