“Where is David?” “He is upstairs ______ ready to go out.”
With so many children ____round the table, the food disappeared_______.
---____ will we have to go? ---Just one mile.Keep walking.
On the opposite wall _____ one map _____ dozens of pictures.
The reason ______ his coming to China is ______ he wants to study in China.
.The children are having a good time, ______ with sand, others with toys.