—We're doing a lot to protect our enviro
题型:选择题
问题:
—We're doing a lot to protect our environment, but it is not good enough. —So we should try______ to look after it.
A.hard
B.harder
C.hardest
D.hardly
—We're doing a lot to protect our environment, but it is not good enough. —So we should try______ to look after it.
A.hard
B.harder
C.hardest
D.hardly