限时训练
Ⅰ.单项选择。
( )1.The Greens _____ China for seven years.
A.have come to B.have been to C.have come in D.have been in
( )2.—Could you tell me _____?
—Sorry, I don’t know.
A.where are my socks B.where can I find my socks
C.where my socks are D.where my socks put
( )3.It’s necessary for you _____ exercise every day.
A.taking B.to take C.take D.takes
( )4.—_____ you _____ your homework yet?
—Yes, I _____ it ten minutes ago.
A.Did; do; finished B.Have; done; have finished
C.Have; done; finished D.Will; do; finish
