根据句意，选择单词或短语并以其适当形式填空。

A. in turn     B. get rid of     C. took it for granted   D. knock sb off one’s feet E. through trial and error     F. keep his head          G. at his fingertips

【小题1】They ________ that I should pick him up on the way home.
【小题2】The children called out their names ________.
【小题3】Mr. White can ________ in any emergency ; he is never likely to panic.
【小题4】How to go to that little island is ________.
【小题5】Try and ________ your visitors before I get there.