---Do you mind opening the window?the air inside is not so fresh.
--- __________, Mr. Smith is taking a nap (小睡)，don’t make him catch a cold.
| A．I’m sorry | B．Certainly not |
| C．I don’t know yet | D．Well, I should be |
Jim is eight-year-old boy. He spends half _____hour playing _____ piano every day.
| A．a; an; a | B．an; the; an | C．an; an; the | D．the; a; / |
I want to buy a comic book but there were __________ left at the bookshop.
| A．no one | B．nothing | C．nobody | D．none |
Help! Tom ________ an accident.
| A．will have | B．has had | C．was having | D．had had |
Jamie is a cook ________ ideas are changing school dinners.
| A．who | B．whom | C．whose | D．that |
They often leave the boy alone at home. They think that he’s old enough to look after _____.
| A．them | B．himself | C．themselves | D．him |