_____________ we all know is that destroying nature means destroying ourselves.
A.what | B.Which | C.That | D.It |
_______caused the accident is still a complete mystery.
A.What | B.That | C.How | D.Where |
It remains doubtful ______ immediate measures could be taken to prevent underground water pollution.
A.how | B.whether | C.that | D.where |
_____ the city’s public school system should be open to the children of migrant workers has become the focus of discussion.
A.That | B.What | C.Whether | D.If |
______ in the regulations is that you _____ other people the password of your e-mail account.
A.What is required; not tell | B.As is required; shouldn’t tell |
C.It is required; not tell | D.It requires; shouldn’t tell |
___ in the regulations is that you ___ other people the password of your e-mail account.
A.What is required; not tell B As is required; shouldn't tell
C.It is required; not tell D.It requires; shouldn't tell
______ made the school proud was ____ more than 90% of the students had been admitted to the key universities.
A.What ; because | B.What ; that | C.That ; what | D.That ; because |
It was _______ you had done _______ made it possible for you to improve your English.
A.that ; that | B.that;what | C.what; what | D.what;that |
Everyone knows that________ is dangerous to play with fire, but________ is difficult is to prevent children from playing with fire.
A.it; what | B.what; what | C.what; it | D.it; it |
_______ excited her parents most was that he was admitted to his dream college.
A.That | B.What | C.Which | D.It |
It’s exactly ______ we do ______ has changed the world.
A.which; that | B.how; that | C.how; what | D.what; that |
It is still under discussion _________ the old bus station should be replaced with a modern hotel or not.
A.whether | B.when | C.which | D.where |
He left home without saying a word, and _______ worries many people and is to be found out.
A.where he has gone | B.where did he go |
C.which place has he gone | D.where has he gone |
It still remains a question _____ life exists on any other planet in the solar system.
A.why | B.whether | C.how | D.where |