We should always keep the classroom ________ and tidy.
A. cleaning B. cleaned C. to clean D. clean
He is going to ______ to New York with his parents.
A. take B. move C. bring D. stay
I wanted to know _____________.
A. how does he come here B. how he comes here
C. how did he come here D. how he came here
We drove our car to go _________ the tunnel.
A. across B. over C. through D. between
Nobody helped me. I finished it by _________.
A. myself B. me C.I D. mine
My pen pal Ann found it difficult ______ Chinese well.
A. learning B. learn C. to learn D. learned