—We're doing a lot to protect our environment, but it is not good enough. —So we should try______ to look after it.
#61510
A
hard
B
harder
C
hardest
D
hardly
推荐题目
As students, we must study hard, because ___________ we study, ________ grades we’ll get.
#61317
A
harder; better
B
the harder; better
C
the harder; the better
D
harder; the better