o make members of a team perform better, the trainer first of all has to know their ______________ and weaknesses.

------ How’s your tour around the North Lake? Is it beautiful?

------ It _______ be, but it is now heavily polluted.

The Shanghai Expo has had a major impact upon China. It is the first World Expo _________ in a developing country in the event’s 159-year history.

__________ the displays of culture and technology, the Shanghai Expo also showcased the spirit of voluntarism.(志愿者精神)

Everyone Obama meets seems to be _________ with his pat-on-the-back signature.

These teenagers don’t know much of the world yet; that’s why they are so easily _________ .

The construction of the two new railway lines ________ by now.

I’m lucky _______ the thing I enjoy doing more is ________ I’ve ended up doing.

------ The authors of computer viruses are geniuses.

------ I agree. They can apply their wisdom to other net technology ________ human beings can benefit.

_______ more attention, the cabbages ________ grown better.