It was not ____ he came back that ____ the truth.

A. before; did we know B. until; we knew

C. for; had known D. because; had we known

He makes a living ____.

A. begging                  B. by begging                C. with begging                    D. to beg

He has ____ arguments with his father.

A. continual                 B. continuous                C. continued                D. constant

Keep quiet, please. The headmaster ____ in a minute.

A. is about to come B. is to come C. was about to come 　　　 D. was to come

As he had worked in the army as an electrical engineer for many years, he has every ____ for the job.

A. ability                       B. obligation                  C. qualification                     D. quality

They walked ____ the direction of the village.

A. to B. toward C. for D. in

She is said to be connected ____ the Smith.

A. to                                   B. with                         C. for                                  D. in

Mr. Smith, tired of the ____ speech, started to read a novel. 

A. boring                      B. bore                         C. bored                       D. bores

 Apart from black eyes, black hair is also ____ of Chinese people.

A.specific                   B. character                       C. characteristic          D. nature

 I admire them for their ____ devotion to their work.

A.selfish                            B. selfishly                  C. selfless                   D. selflessly