—I often make mistakes _______grammar.—Why not ask your teacher _______help?
---There was something wrong with my TV set.Can you mend it? ---Let me see.I think I can _______.
The mooncakes with nuts are ______ than the ones with meat.
There was a _____ rain yesterday evening.It rained ________.
There is _____ river at the foot of the mountain(山)._____ river is dangerous.
I’ll call you _________I get to Beijing.