—Must I sing the song in Russian?—No, you _________. It’s up to you.
The police us not to swim in the river last summer.
My hometown Chongqing is well-known _________ the delicious food.
--- weather it is! We can't go boating on the lake. --- Don't worry. Let's go to the Science Museum instead.
Could you please pass me a pair of __________? I want to use them to practice paper cutting.
--- do you study English? --- I study English by reading aloud every morning.