单项选择题

Though Mary continued working, she kept looking at the clock ______, thinking of her sick baby in hospital.

A．all the time
B．at once
C．after a while
D．for a moment
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I haven't seen you since you came back from holiday, ______ a nice time
A．Do you have
B．Did you have
C．Have you had
D．Had you had
单项选择题
— Sorry, am I in your way I'll move.— ______.
A．Oh, well done!
B．Well, that's my pleasur
C．Go ahea
D．Thank you for your kindnes
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