问题
We’re doing a lot to protect ourenvironment, but it is not good enough. —Sowe should try______ to look after it.
A:hard
B: harder
C:hardest
D:hardly
B: harder
C:hardest
D:hardly
正确答案是：
同类题型
The two brothers look so much alike that itis difficult to ______
______ we clean the classroom at once–No, you _____. You____ clean it afterschool.
Are you _______ “Planting online vegetables” ––No, I think it’s a waste of time.
—Why don’t we choose that road to save time?—The bridge to it ________.