填空题
How many mistakes are there in this picture?
There are 1.
填空题
How many years has the speaker been running?
1.
填空题
How many miles does the speaker run at a time?
1.
填空题
Why does running seem to be the best form of exercise for many people?
Because there is no need for 1.
填空题
When can we do running?
We can do at 1.