13．Could you tell me ____ the radio without any help?

　A．how did he mend

　B．what did he mend

　C．how he mended

　D．what he mended

12．The small children don't know ____.

　A．what is their stockings in

　B．what is in their stockings

　C．where is their stockings in

　D．what in their stockings

11．I can't understand ____.

　A．what does Christmas mean

　B．what Christmas does mean

　C．what mean Christmas does

　D．what Christmas means.

10．Do you know what time ____ ?

　A．the train leave

　B．does the train leave

　C．will the train leave

　D．the train leaves.

9．----I don't know if he ____.

　 ----He will come if it ____.

　A．comes; won't rain

　B．will come; doesn't rain

　C．comes; doesn't rain

　D．will come; won't rain

8．I didn't buy the dictionary yesterday ____ my aunt would give me one.

　A．until

　B．because

　C．if

　D．before

7．We won't visit the Great Wall until the rain ____

　A．will stop

　B．stops

　C．stopped

　D．has stopped

6．Betty didn't go to see the film yesterday ____ she was ill

　A．because

　B．but

　C．until

　D．if

5．We will go to the Great Wall if it ____ tomorrow

　A．won't rain

　B．isn't raining

　C．rained

　D．doesn't rain

4．This TV set is too dear, ____ it gives you a better picture

　A．or

　B．if

　C．though

　D．and