Many trees in this area have been __ to make room for buildings, which has worsened our living environment.
cut down
举一反三
- One-third of the area _______ covered with green trees, and about seventy percent of trees _______ been planted. ( ) A: are; has B: is; has C: are: have D: is; have
- One-third of the area _____ covered with green trees. About seventy percent of the trees ____ been planted. A: are; have B: is; has C: is; have D: are; has
- Never before ______ as united as it is today. A: our country has been B: has our country been C: has been our country D: have our country been
- A huge number of trees __________ in this area. A: has been planted B: have been planted
- Our government has been ________ in helping the peasants to improve their living conditions.
内容
- 0
Our reading room has ______________ . (many interesting books, the latest magazines)
- 1
Never before ______ so many people in our country been interested in sports. A: has B: have C: had D: are
- 2
There ____ a lake and many trees near the house. A: is B: are C: has D: have
- 3
Our team has won the championship. / Thechampionship ........................ by our team. A: has won B: has been won C: have been won
- 4
Many a young scientist ________ engaged in the research work. A: have B: has C: have been D: has been