I haven’t seen you for a couple of days . What have you been up ?
| A．in | B．to | C．with | D．for |
Man-made-satellites______ into space by many countries.
| A．was sent up | B．is sent up | C．have been sent up | D．has been sent up |
I _______ all the words on the black board. May I go home now?
copy B. will coup C. copied D. have copied
Nobody knew _______ a living in that country.
| A．to do | B．to make | C．how to do | D．how to make |
The old man needs at most five hour’s sleep a night ,but he__________ for over seven hours tonight.
A. has fallen asleep B has slept C has gone to bed D. has gone to sleep
I’m really getting too fat. From now on, I________ more exercise and eat less food.
A have done B do C am doing D will do