There _________a number of trees on both sides of the river .________them is about 200,000.
News books _________ to our school last week.
Hangzhou and Anxi are widely _________ for the silk.
---Do you know if he will come tomorrow? ----No, but if he , I’ll call you to have a meal together.
The shorts __________ of cotton.
---- interesting the film is? ----Yes, I have seen it twice.