We should protect the earth， we will have no water to drink．
| A．so | B．or | C．and | D．but |
—______ do you usually go to bed?
—At six.
| A．What time | B．How time | C．When | D．A and C |
— _______ does Tom like math?
—Because _____ fun.
| A．Why, it’s | B．When, it | C．Why, It’s | D．When, it |
—Let’s play computer games.
—Great! That sounds_______.
| A．boring | B．difficult | C．interesting | D．sad |
Please call Nick ____ 758-6584.
| A．on | B．in | C．at | D．under |
These books are _____. _____ are in _____ bags.
| A．my. You, You | B．My, Yours, your |
| C．mine, Your, Yours | D．mine, Yours, your |