Never _______ protecting our earth. It is the only nice planet for us to live on.
#53246
A
leave for
B
learn about
C
give up
D
look up
推荐题目
—Why do you look so tired?—Because we ________ for three hours without stopping.
#52803
A
work
B
worked
C
have worked
D
were working
-- Eating and drinking on Beijing subway is not allowed. If you the rule, you’ll face a fine (罚款) of up to 500 yuan.
#52597
A
broke
B
break
C
will break
D
have broken
Morgan's parents aren't at home. He has to ______his younger brother.
#59237
A
look at
B
look for
C
look after
D
take away