28. This morning Ms. Green entered our classroom, and _____ us something important about the coming exam, left.
| A．having told | B．told | C．telling | D．to tell |
------ Is Peter there?
-----_______, please. I will see if I can find him for you.
| A．Hold out | B．Hold up | C．Hold on | D．Hold in |
The poem is hard to understand. Can you make ____ of it?
| A．idea | B．knowledge | C．sense | D．understanding |
It’s easy for some women to be ________ by products promising to help lose weight soon.
| A．brought in | B．brought up | C．taken on | D．taken in |
--- It’s a long time ______ I saw you last.
-----Yes, and what a pity it is now that it will be a long time _____ we see each other again.
| A．since; when | B．before; since | C．when; before | D．since; before |
The _____ global warming has on man’s existence is more unpleasant.
| A．connection | B．effct | C．affect | D．struggle |