A、clean
B、to clean
C、cleaned
D、cleaning
第1题:
______school is much larger than ______.
A.Our;your
B.Our;yours
C.Ours;yours
D.We;you
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:
A. Every 5 minutes
B. Every 90 seconds
C. Every 60 seconds
D. Every 30 seconds
第5题:
英文科技论文写作中应该尽量少用或不用I, we, our, 和you等第一、第二人称代词。
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”。