After hard work, he felt _______ tired to walk.
| A．so | B．to | C．too | D．very |
—Why was he late for school yesterday?
— He overslept. By the time he got to the bus stop, the bus ________ already ______.
| A．has; left | B．had; left | C．was; leaving | D．have; left |
—Heavy smog (雾霾 )in eastern and central China seems to get more and more serious.
—I agree. Something to deal with it.
| A．has done | B．is doing | C．must be done | D．must do |
— Who is your favorite writer?
— Mo Yan. I like writers _________ tell stories well.
| A．where | B．when | C．which | D．who |
Tom finds _________ difficult to learn Chinese well.
| A．it | B．that | C．this | D．him |
—What _______ you do if you _______ 5 million yuan?
— I’d travel around the world.
| A．will, will win | B．would, won |
| C．would, win | D．will; won |