---Good to see you again. It’s almost three years _______ we met last time.
---Yes, how time flies.
| A．until | B．before | C．while | D．since |
This robot is supposed to save a lot of labor, but it remains a problem if it ______.
| A．is | B．saves | C．does | D．has |
—Sam, come downstairs, please. I need your help.
—Sorry，mum. I on the phone..
| A．am talking | B．talked |
| C．was talking | D．have talked |
—When and where to spend the holiday ____ yet.
—Let’s make it now.
| A．is decided | B．doesn’t decide |
| C．has not been decided | D．has decided |
—I doubt if he __________ to the party with us tonight.
— I believe if he __________ his homework, he will go with us.
| A．will go; will finish | B．will go; finishes |
| C．goes; finishes | D．goes; will finish |
- Have you finished writing your book? - Yes. It _______ and _______ soon.
| A．is printing; is coming out |
| B．is being printed; will come out |
| C．is going to print, will be come out |
| D．is printed; has come out |