The policy of _________ pay for _________ work has been in place in China for over 50 years.
A. equal, equal
B. more, less
C. less, more
D. equa, less
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Oil is an important _____ material, which can be processed into many different chemical products, including plastics.
A. primary
B. raw
C. original
D. critical
The speaker impressed a1l the people _____ his eloquent speech.
A. by
B. in
C. with
D. at
孩子们很苦恼,因为他们的家长不允许他们在铁路轨道旁玩耍(be annoyed that)
我打赌我只要速度快一点,我肯定比他们先到目的地(pick up)