1£®You can count on them to help you, for they are kind.

2£®The key to resolving the unemployment problem lies in creating more job opportunities.

3£®—Do you have a minute£¿I've got something to tell you.

—OK, as/so long as you make it short.

4£®The two sides debated with each other about/on/over who was the better for a whole day.

5£®All people, whether they are old or young, rich or poor, have been trying their best to help those in need since the disaster.

6£®Was it when he was playing volleyball on the playground that he got hurt?

7£®The girl ran to tell her teachers that she had been accepted by a key university instantly (instant) she got the notice.