单项选择题
M: Do you mind if I smoke here W: Sorry, not here. Go ahead at the comer, please.
A．Please smoke over there. B．Just smoke here. C．You can’t smoke anywhere.
No sooner had they got the goods covered up （） it start...
单项选择题No sooner had they got the goods covered up （） it started raining hard.
A．when B．than C．then D．after
How the fire in the dancing hall started （） a mystery. ...
单项选择题How the fire in the dancing hall started （） a mystery.
A．to remain B．remains C．remain D．is remaining
The middle-aged man was seen （） out of the house on the...
单项选择题The middle-aged man was seen （） out of the house on the afternoon of the murder.
A．came B．Come C．to come D．have come
