The boy is lost. The police ______ him.
| A．are searching | B．is searching | C．is searching for | D．are searching for |
-_______ do you take some_______?
-Every day. And I am very healthy.
| A．How often; exercise |
| B．How long; exercises |
| C．How much; exercise |
| D．How many; exercises |
It is impossible for humans to live on the moon_______ there is no water_______ air there.
| A．so; and | B．because; and |
| C．if; or | D．because; or |
Which underlined letters of the words have a different sound?
| A．start | B．quarter |
| C．far | D．arm |
He is_______ to buy_______ for his parents.
| A．rich enough, enough present |
| B．enough rich, enough presents |
| C．rich enough, enough presents |
| D．enough rich, presents enough |
I just don't know_______ myself.
| A．to buy what for | B．what to buy for |
| C．what to buy to | D．to buy what to |