Like ancient sailors, birds can find their way ________ the sun and stars.
A. used
B. having used
C. using
D. use
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--- Hello Jenny, can I see Ms. Lewis?--- __________. I’ll tell her you’re here.
A. With pleasure
B. Never mind
C. You’re welcome
D. Just a minute
Last year was the warmest year on record, with global temperature 0.68℃ _________ the average.
A. below
B. on
C. at
D. above
We must find out ________ Karl is coming, so we can book a room for him.
A. when
B. how
C. where
D. why
--- I can drive you home.--- __________, but are you sure it’s not too much trouble?
A. That would be great
B. Don’t bother
C. I’m afraid not
D. Take care