They must have finished the work by the end of last month, ______?
| A．hadn’t they | B．mustn’t they | C．haven’t they | D．didn’t they |
I’ve finally finished my paper and it ＿＿＿＿＿ me an entire month.
| A．takes | B．took | C．was taken | D．had taken |
Good heavens! There you are! We＿＿＿anxious about you, and we ＿＿＿you back throughout the night.
| A．are； expect | B．were； had expected |
| C．have been； were expecting | D．are； were expecting |
They won’t buy new clothes because they＿＿＿money to buy a color TV set.
| A．save | B．are saving | C．has saved | D．were saving |
—— Why? Tom, your shirt is so dirty!
—— Mum, I ＿＿＿＿＿ my storeroom downstairs。
| A．cleaned | B．have worked | C．was cleaning | D．have been cleaning |
——It is said that another new car factory＿＿＿＿＿now.
—— Yeah.It ＿＿＿＿＿one and a half years.
| A．is building； takes | B．is being built； will take |
| C．is built； will take | D．is being built； takes |