—The land in the southwest of China is in great need of .
—Yes, it hasn’t rained for a long time there.
A、people B、food C、water
I spent half an hour ________ the piano every day.
| A．to play | B．play | C．playing | D．played |
I _______ to learn to play the piano ever since then.
| A．began | B．begins | C．begun | D．have begun |
----Why not _______ to the park now?
---- Good idea! Let’s go.
| A．go | B．to go | C．going | D．gone |
They were made ________ the classroom after class.
| A．to clean | B．clean | C．to cleaned | D．cleaning |
My teacher told me that the moon _______ around the earth.
| A．travel | B．travels | C．traveled | D．travelling |