—Thecentreisdoingalottoprovidegoodeducationfortheleft-b...
来源：语文精选馆 2.12W
问题详情：
— The centre is doing a lot to provide good education for the left-behind children.
— Yeah, but it’s not good enough. They should try ______.
A. hard B. harder
C. hardest D. hardly
【回答】
B
知识点：副词
题型：选择题
