bear wall
举一反三
- The wall of pollen grain is divided into two layers. A: primary wall and secondary wall B: pectin layer and primary wall C: outer wall and inner wall D: pectin layer and secondary wall
- Be careful! ________. A: The wall is falling B: The wall is to fall C: he wall will fall D: The wall is going to fall
- The Romans built two walls to keep the picts out of the area they had conquered. The two walls were called ______ and ______. A: the picts’ Wall, Celts’ Wall B: the Hadrian’s Wall, the Antonine Wall C: Britain’s Wall, Scotland’s Wall D: Roman Wall, Julius’ Wall
- The polar bear evolved from brown bear ancestors.
- The fox asked the bear to cut a hole in the ice to ______. A: help the bear catch more fish B: kill the bear in the icy hole C: stop the bear from catching any fish D: keep the bear from knowing about the fox