Unit1单元综合检测.单项选择。（15分）( )1.The Greens _ China for seven years.A.have come toB.have been toC.have come inD.have been in( )2.Could you tell me _?Sorry, I dont know.A.where are my socksB.where can I find my socksC.where my socks areD.where my socks put( )3.Its necessary for you _ exercise every day.A.takingB.to takeC.takeD.takes( )4._ you _ your homework yet?Yes, I _ it ten minutes ago.A.Did; do; finished
