关键语法
Can you help me________(clean)my room？
They want to visit the old men________(cheer) them up．
They volunteer________(teach)kids at the local school during the holiday．
He used________(play)the piano after school．
Each student________(have)a computer at home．
He got a strong feeling of________(satisfy)．
They decided________(play)for the national team．
I’d like________(swim)in the river in summer．
The police ask them________(drive)carefully．
The Greens made plans________(raise)money for homeless people．