We will have no water to drink ________ we don't protect the earth.
| A．until | B．before | C．though | D．if |
— do you spell “black” ?
— B-L-A-C-K
| A．Can | B．What |
| C．How | D．Who |
— is this cap ?
— It’s yellow.
| A．What | B．Who |
| C．What color | D．How |
—Good morning .
— .
| A．Fine |
| B．Thank you |
| C．Good morning |
| D．Hi |
—Your sofa is nice.
—__________.
| A．OK |
| B．Yes, it is |
| C．Thank you |
| D．No, it isn’t |
—Where’s my clock, Mum?
— _________. Is it on your desk?
| A．Yes, it is |
| B．No, it isn’t |
| C．I don’t know |
| D．It’s here |