题目内容
根据句意填上一个恰当的词
Joe doesn't study hard enough and falls ________ in his studies.
Mr Smith ________ many flowers in his garden.
The lift ________ John down to the first floor.
Usually I ________ the number 4 bus to work.
How many ________ does this building have?
We live in a city ________ Zhengzhou.