------ I wonder ______ you’ll water this kind of tree.
------- Once a week.
| A．how often | B．how long | C．how soon | D．how much |
—Will people live to be 200 years old?
—____________.
| A．No, they aren’t. | B．No, they won’t. | C．No, they don’t. | D．No, they can’t. |
Can you tell me_____________?
| A．when did the train arrive | B．whether has the train arrived |
| C．when will the train arrive | D．whether the train has arrived |
---______ to give the letter to Mr. Wang. It’s very important.
---No, I won’t.
| A．Remember | B．Don’t forget | C．Be sure | D．Make sure |
They have to ______leaving for London because of the bad weather.
| A．put on | B．put out | C．put up | D．put off |
---How long did you spend going through the jungle during the exciting vacation?
---Going through the jungle _____us about three weeks.
| A．spent | B．used | C．paid | D．took |