In this country, ___________ children shouldn’t smoke.
A. five-years-old B. five-year-old C. five-year-olds
—Did you know ______ just now?
—Their plane didn't take off on time because of the thick fog.
| A．what did they happen | B．what happened to them |
| C．what they happened | D．what they have happened |
—Excuse me, could you tell me ______?
—Sorry, I don’t know. I’m new here.
| A．when the museum opens |
| B．where is No.8 Middle School |
| C．how long has the old lady lived here |
| D．how do you celebrate Halloween |
---Who can tell me_______? ---Every 15 minutes.
| A．when the bus will arrive. |
| B．how often the bus arrives |
| C．how long has the bus been away |
| D．when will the bus arrive |
The newly-designed car is on show now. I wonder .
| A．how much does it cost |
| B．who designed it |
| C．where was it made |
| D．that the car will be sold in China |
---What did the policeman say to you just now?
--- He asked _______ when the accident happened.
| A．what I was doing | B．what was I doing |
| C．what I am doing | D．what am I doing |