I ______ believe it _______ I see it with my own eyes.

  A. won’t; and         B. will; but              C. will; until         D. won’t; until

 The box was too heavy for me to carry, ＿＿＿I pulled it into my room. 

A. so         B. and          C. but        D. or

---- Mom, when shall we go to Weifang Museum this weekend?

---- Oh, sorry. I'm going to Beijing for a meeting. ____ Saturday ____Sunday is OK.

A. Neither, nor　 B. Both, and　　 C. Either, or　　 D. Not only, but also

 I still remember my first teacher      we haven’t seen each other for a long time.

   A. if     B. until    C. though    D. because

Stand over there, ______ you will get a better view of the whole city.

    A. or               B. and                  C. but             D. though

Stephen Hawking can’t walk or even speak，_____he has become very successful.

A. but               B. and              C. or           D. then

He had to retire(退休) early ______ poor health.

A. as a result　　　　　　　　　　 B. because

C. so　　　　　　　　　 　　　　　 D. because of

Come on, ______you'll be late.

A. and B. but C. or d. so

 Write down the phone number, __________ you’ll forget it.

    A. so           B. and              C. but              D. or

_______ you have tried it on, you can’t imagine how pretty the new style skirt is.  

A. Because         B. Although         C. Unless         D. When