A.Just a few
B.Only some
C.Not much
D.Not all of
第1题:
A. Every 5 minutes
B. Every 90 seconds
C. Every 60 seconds
D. Every 30 seconds
第2题:
Each life jacket light that has a non-replaceable power source must be replaced ______.
A.every 6 months after initial installation
B.every 12 months after initial installation
C.every 24 months after initial installation
D.on or before the expiration date of the power source
第3题:
后缀-our的语义和形容词性物主代词our是相同的,表示“我们的”。
第4题:
5.We can______ books _______bookstore(书店).
A. sell ;to
B. buy ;from
C. sell ;from
D. buy ;to
第5题:
第6题:
5、后缀-our的语义和形容词性物主代词our是相同的,表示“我们的”。