—__________ do you cook for your family?—Sorry, never.

—Mum, what’s the time now?—It’s already half past seven. Be quick,_____ you will be late.

It       Yang Liwei about 21 hours       the earth 14 times in his spaceship.

 -- _____ classes are there in your school?   –Thirty. 

 ---- How do you like English? ---- I like it very much, _____ I can’t speak English well.