________he couldn’t understand was________，as a teacher of Chinese，he was asked to teach history.

We are looking forward to______another chance ______ it again.[ ]

The young couple often quarrelled with each other aboutsmall things, which they couldn’t_ finally.

The Smith are to move to the city and they have been looking ________ the district for a suitable house.[ ]

As the Internet has gained popularity, there has been a change in the way ______ people spend their time.