—When should I hand in my paper？
—Your paper must _______as soon as the bell________ .
A. hand in，rings
B. be handed in，will ring
C. be handed in，rings
There are no calories in __________.
| A．Coke | B．milk | C．vegetables | D．water |
It’s important __________.
| A．for us to learn English well | B．to us to learn English well |
| C．for us learning English well | D．of us to learn English well |
__________ is (are) healthy food.
| A．Fish | B．Ice-cream | C．Cakes | D．Hamburgers |
—__________ do you swim? —Twice a week.
| A．How long | B．How many times | C．What time | D．How often |
Uncle __________ exercises. It’s not good for his health.
| A．sometimes | B．seldom | C．often | D．always |