30. It was once called the Sea of Bamboo, but now only one fifth of the area ______ covered with bamboo, and sixty percent of other plants ______ taken the place of the bamboo.
A.are; have | B.is; has | C.is; have | D.are; has |
1 haven't got a single ______from Aunt Mary since I last saw her.
A.advice | B.news | C.message | D.information |
The rescue team ______to help but failed to get there in time.
A.had wanted | B.have planned | C.were expecting | D.hoped |
--Will you two go to the show tomorrow?
---No. We're going to a lecture, or at least I'm planning ____.
A.it | B.to | C.that | D.so |
I'd love ___ to your party last Sunday if not because of the unexpected guests.
A.to go | B.going | C.having gone | D.to have gone |
.____ the temperature falling so rapidly, we couldn't go on with the experience.
A.Since | B.With | C.As | D.For |