— It’s dangerous to swim in this river.— Yes, you are right. The government has _________ people not to swim in it.
There _________a number of trees on both sides of the river .________them is about 200,000.
You are sure to fail the exam________ you study hard.
—Thank you for your ________ on my plan for the summer holiday.—You’re welcome. I hope they are worth ________.
The final of the football matches will be covered _________tomorrow afternoon.
Do you know ________danger they faced at that time? Anyway, they survived at last.