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[多选题]
The operation of railway transportation has been greatly improved in ().
A.running speed
B.transportation capacity
C.travel service
D.labor cost
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B.transportation capacity
C.travel service
D.labor cost
Toward evening, ______ came, which made things even worse.
A) cold rain B) the cold rain
C) a cold rain D) cold rains
A. unless
B. so long as
C. whether not
D. even if
The man was ______ at once, and he no longer had a headache after the operation.(operation)
The medicine ______ at once, and I no longer had a headache after taking it. (operation )