—Why are you worried?
—I’m expecting a call from my daughter. She New York for three days.
A. has gone to B. has been to
C. has been in D. has come in
— Driving less and walking more is good for our health.
— So I’d rather ________ an hour’s walk to work than consider ________ a car.
A.take ;drive B.take ; to drive C.take; driving D.taking; driving
－The traffic is very heavy, so Mike ________ come late.
－That's OK. We'll wait for him.
A.can B.may C.need D.should
— Did you notice . in her office?
— Yes. She was going over our writing.
A.what was Miss Lin doing B.what Miss Lin was doing
C.what does Miss Lin do D.what Miss Lin does
Mary together with her sisters, ________Chinese in China.
A.are studying B.have studied C.study D.studies
Which of following belongs to clean energy?
A.CO2 B.H2 C.coal D.N2
