We don’t allow at school. It’s bad for our health.
| A．them to smoke | B．them smoking |
| C．smoke | D．to smoking |
You never know _______ you try something.
| A．though | B．until | C．if | D．because |
Do you know ___ in America?
--Sure. It’s the third Sunday of June.
| A．when Father’s Day is | B．how is Father’s Day |
| C．when is Father’s Day | D．how Father’s Day is |
----Turn on the radio.
----__________?
----I asked you to turn on the radio.
| A．Excuse me. | B．Sorry |
| C．Don’t you | D．Pardon me. |
Would you like to help me _____ the heavy box?
| A．carries | B．carrying | C．carry | D．carried |
Could you please tell me ____ I can buy some stamps?
| A．when | B．where | C．what | D．why |