—Could you please tell me_______?
—Sorry, you can turn to Mr. Lee for help.
| A．how long can man live without water |
| B．how long could man live without water |
| C．how long man can live without water |
| D．how long man could live without water |
---What’s wrong with my son, doctor?
--- _______ serious. Just a slight cold.
| A．Something | B．Anything | C．Nothing | D．Everything |
It’s more than 8 years since I a teacher.
| A．become | B．has become | C．became | D．becomes |
Learning English will us a lot of time.
| A．take | B．spend | C．cost | D．pay |
There a lot of farmland here. But now you can only see tall buildings.
| A．used to have | B．is used to being |
| C．used to having | D．used to be |
I have ________ interesting book. _________ book is Millie’s.
| A．the, a | B．an, a | C．an, the | D．the, the |