I am tired. I ______ all day.
| A．am working | B．have been working | C．worked | D．have been worked |
We _____ with you for the time being.
| A．will stay | B．will be staying | C．would stay | D．have stayed |
—Who sings best in your class?
—Mary _____.
| A．is | B．does | C．do | D．sing |
She _____ her pen in her room now.
| A．finds | B．is finding | C．looks for | D．is looking for |
What _____ you _____ tomorrow morning?
| A．are/going to do | B．are/doing | C．are/done | D．have/done |
It was not long before the water _____ cold.
| A．is feeling | B．feels | C．felt | D．was feeling |