—Would you tell me you want your tea , with sugar or milk ?
—Sugar , please .
| A．whether | B．when | C．what | D．how |
.He said he _________ experiments those days.
| A．was doing | B．had been doing | C．has been doing | D．is doing |
There was a heavy curtain ________ the light.
| A．blocking out | B．preventing from | C．blocking in | D．taking off |
. These old buildings possibly __________ the Ming Dynasty.
| A．dated back to | B．date back to | C．date back | D．are dated back to |
The government announced that six highways by the end of last year.
| A．built | B．had built | C．have been built | D．had been built |
With his eyes _______ on me, he came towards me.
| A．fixed | B．fixing | C．to fix | D．were fixed |