You need________the trees，because the weather is too dry and the trees need________．
| A．to water；to water |
| B．to water；watering |
| C．watering；to water |
| D．watering；watering |
______ is important for us ______ learn computer.
| A．It, to | B．It, / | C．That, / | D．This, to |
In this school, ______ students work very hard, ______ they are very happy.
| A．although, / | B．although, but | C．/, although | D．but, although |
______ good habits ______ very important.
| A．Having; is | B．Having; are | C．Have; is | D．Have; are |
Try ______ more books, and you will find it’s good to read books.
| A．reading | B．read | C．reads | D．to read |
You can eat these two ______ kinds of food, and find the ______ between them.
| A．different, different | B．different, differences |
| C．difference, difference | D．differences, different |