The accident happened at nine o’clock in the morning ____ we were all busy with our work [ ]

The boy doesn’t like ______ when his mother compareshim with the other children in the neighborhood

There some milk, two eggs and a few apples on the table. You can take them away.– Thanks. I will.

The weather in Beijing is colder than ________.

In order to keep fit, you will take exercise ________ and eat healthily[ ]