We should help people who are in trouble. _____, if we become desperate, they will lend us a hand.
| A．In common | B．In particular |
| C．In turn | D．In reality |
This city, ______ lies in the northeast, was the country’s busiest port from 1648 to 1950.
| A．that | B．which | C．what | D．where |
At least 200,000 people were reported ______ in the ever recorded worst earthquake that struck Haiti that winter.
| A．being killed | B．to be killed |
| C．killing | D．to have been killed |
One advantage of eating a balanced breakfast is ______ it can keep you energetic throughout the day.
| A．that | B．how | C．when | D．whether |
We often talk a great deal about English language teaching, ______ that it is the learning that really matters.
| A．having forgotten | B．forgotten | C．forgetting | D．to have forgotten |
Many companies give away small quantities of their produce as samples ______ people can try them before buying them.
| A．if | B．because | C．so that | D．since |