Carbon dioxide,which makes a________between us and the sun,prevents heat from getting out of the atmosphere easily,so the earth is becoming warmer.
| A.difference | B.comparison |
| C.connection | D.barrier |
_______ restoration of ancient architecture, the Chinese government has invested a large sum of money on it.
| A.In case of | B.In favor of | C.In terms of | D.In honor of ![]() |
I think this is the very work that we must finish ____ her.
| A.to help | B.help |
| C.helping | D.helped |
The work he devoted his time to _____ worth praising.
| A.was | B.be |
| C.being | D.been |
The little girl who got lost decided to remain _________she was and wait tor her mother.
| A.where | B.what | C.how | D.who |
The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.
| A.what | B.which | C.that | D.though |