23. ----Mike, the telephone is ringing.

   ---- I  _ _     answer it.

A. will                        B am going to            C. am to            D. am about to

24. ---- You won't go to Kathy's wedding party, will you?

   ---- Yes, ________ invited.

   A. though             B. if                C. unless               D. as

25. ---- Good morning. How much should I pay for these books ________ to Alabama?

   ---- Hm, about ten dollars.

   A. to be sent          B. being sent             C. sent     D. having been sent

26. ----Hello. May I speak to Bill, please?  

---- ________.        
    A. Bill speaking         B. I’m Bill     C. You are speaking to Bill            D. I’m speaking