在石油化工火灾中,对于着火,并已形成稳定燃烧的设备能否发生爆炸?
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Yesterday was my birthday. My mother .
A. made a cake to me
B. made a cake me
C. made for me a cake
D. made me a cake
Let's go swimming, ?
A. aren't we
B. shall we
C. will you
D. won't we
Stranger was seen into the building.
A. walk
B. to walk
C. walked
D. having walked
Congratulations on the great you have made since last year.
A. progress
B. measure
C. appointment
D. sense