—I counted sheep, I drank milk and I tried everything, but nothing helped.
—It seems you _____ too much recently. Try some sleeping pills.
| A．worked | B．will be working |
| C．had worked | D．have been working |
She is＿＿＿＿＿new comer to＿＿＿＿chemistry but she has already made some important discoveries．
| A．the； the | B．the；／ | C．a；／ | D．a； the |
—— Where’s Jack?
—— I think he’s still in＿＿＿bed, but he might just be in＿＿＿bathroom．
| A．／；／ | B．the； the | C．the；／ | D．／； the |
Which is＿＿＿＿＿country, Canada or Australia?
| A．a large | B．larger | C．a larger | D．the larger |
Alexander Graham Bell invented＿＿＿＿＿telephone in1876．
| A．／ | B．a | C．the | D．one |
Beyond＿＿＿＿＿stars, the astronaut saw nothing but＿＿＿＿＿space．
| A．the；／ | B．／； the | C．／；／ | D．the； the |