11．“The cat’s got your tongue” refers to ______.（      ）

A. you’re in a trouble.                                   B. you feel sick.

C. you’re very quiet.                                     D. you like the cat.

12．“It’s only by the skin of your teeth” means ______.（      ）

A. it’s only in your position                            B. just manage to make it

C. it surprises you very much                        D. you try to protect yourself from danger

13．“To make one’s flesh creep” means ______.（      ）

A. to cause one to feel fear                            B. to show no alarm

C. to make surprise                                      D. to make one uncomfortable

14．“Marry in May, repent always” is related to ______.（      ）

A. christianity                                              B. Greco-Roman civilization

C. English literature works                            D. style of living in Western countries

15．“David and Goliath” connotes ______.（      ）

A. a contest between two loved persons

B. a contest between two good friends

C. a contest between brothers

D. a contest between two persons and the weaker wins out