(2009宁夏银川模拟) In an experiment, pet owners are being encouraged to take their pets to work, a move _______ can be good for both the people and the pets

It isdangerous to allow the children who are ________ swimming in the river.

can’t believe that you’vesuch a wonderful deal. What was wrong with it?[ ]

was very busy, and________he didn’t go to the party that night.

______ is not how much you do but what you do that matters.