One-third of the area _____ covered with green trees. About seventy percent of the trees _____ been planted.
举一反三
- 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
- 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 this area (cover )____with trees,50 percent of which are pines .
- More than 3000 trees ___ in this area by the end of last year. A: have been planted B: had planted C: were planted D: had been planted
- _____ of this area _____ covered with green trees and grass. A: Three-fourths; is B: Three-fourths; are C: Three-fourth; is D: Three-fourth; are