Question

Nancy isn’t here. It’s my fault, I forgot all about ______ her

1. A.
   to telephone
2. B.
   telephoning
3. C.
   to telephone to
4. D.
   telephoning by

Answer 1

B
考查非谓语动词。句意：南希不在这儿。是我的错，我完全忘了打电话给他。About是介词，后面接名词或者名词性短语。动名词表示抽象动作，故选B