Don’t__________your dream. I’m sure your dream will come true one day.
| A．take off | B．come up with |
| C．take up | D．give up |
This bed soft.
| A．sounds | B．smells | C．looks | D．tastes |
Betty has studied Chinese _____ a year.
| A．for | B．since | C．in | D．before |
Scientists think that there _____ life on Earth for millions of years.
| A．has had | B．have had |
| C．has been | D．have been |
Some scientists have sent a spacecraft to Mars. It ____ several months to get there.
| A．spent | B．has spent |
| C．has taken | D．take |
Do you know thegirl ?
| A．5—years--old | B．5—year—old |
| C．5 years old | D．5—year-- older |