19. Russia is a country which extends across _____ .
— There is still a copy of the book in the library. Will you go and borrow __________?— No, I’d rather buy __________ in the bookstore.
—What do you think of the performance today?—Great! __________ but a musical genius could perform so successfully.
To save class time, our teacher has ___ students do half of the exercises in class and complete the other half for our homework.
He has made a lot of films, but __________ good ones.
The school’s music group will be giving a big show tomorrow night and two __________ on the weekend.