I _____ give you this book today, but I forgot.

　　A. intended to  B. tended to   C. extended to  D. pretended to

---- The light in the office is still on .

　　---- Oh , I forgot ____ .

　　A . turning it off      B . turn it off      C . to turn it off      D . having turned it off

---Did you tell Julia about the result?

--- Oh, no, I forgot. I  ____  her now.

　A. will be calling    B will call   C. call      D. am to call

I'm sorry I forgot_ ______him about it, so he didn't come.

　　A. to tell        B. telling        C. to be told         D. having told

I'm sorry ____ so long, I forgot to tell you in advance where I had put my key.

　　A. to keep you wait           B. to keep you waiting

　　C. to keep you waited         D. to have kept you waiting