Then the __________ began to eat the green __________ of young trees.
举一反三
- One-third of the area _____ covered with green trees. About seventy percent of the trees _____ been planted.
- 262.30 % of the young trees, attacked by diseases, ________pine trees. A: is B: are C: was D: has been
- 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
- 中国大学MOOC: The shape and form of the bark differ not only in the variety of trees but also in age. In other words, the bark on young trees may appear distinctively from that on more __________ trees.
- Maple trees are thought to be fall color trees or foliage trees.