When you go outing with your sisters, you must see to ________ that they are safe.
| A．everything | B．it | C．them | D．yourself |
E-mails can _______ a lot of phone calls because almost everybody prefers things that are written and not just said on the phone.
| A．exchange |
| B．represent |
| C．reduce |
| D．replace |
Having a trip abroad is certainly good for the old couple, but it remains _______whether they will enjoy it.
| A．to see |
| B．to be seen |
| C．seeing |
| D．seen |
At the meeting, Mr Li came up with a proposal _______the construction of the new airport.
| A．concerned |
| B．to concern |
| C．concerning |
| D．being concerned |
Her health has been in a poor state, so she is strictly_______to drink beer and smoke cigarettes.
| A．banned |
| B．prohibited |
| C．forbidden |
| D．prevented |
Now in our country,it seems that examinations are the only approaches to_______ a student's ability.
| A．guessing |
| B．assessing |
| C．valuing |
| D．praising |