—Andy, please ________the book on the floor.
—No problem.
A.pick up B.take off C.put on D.set up
People can reduce ________ pollution by riding bicycles.
A.water B.air C.light D.soil
Both Mike and his sister Lucy ________ good at Chinese.
A.is B.am C.are D.be
—Look at the umbrella. Whose is it?
—It may be Millie's. ________ umbrella is the same as this one.
A.She B.Her C.Hers D.Herself
The boy is not very tall, ________ he runs very fast.
A.and B.so C.but D.or
—Bill, how often do you take________ walk?
—Every day.
A.a B.an C.the D./
