20、With so many evidence against him he had to____ his errors openly．                                                     

A．refuse     B．acknowledge       C．declare        D．recognize

19、I must go home now, _______ I have many exercises to _______．

A．for; do          B．since; to be done        C．since; doing             D．for; to be done

18、What you are saying is not ____ to the question under discussion．Please think twice before you make any suggestions．

A．strange          B．common         C．familiar         D．relevant

17、_____ troubles me most right now is____ I can’t remember where I have put my car keys．

A．That ;what           B．What; that          C．What; what          D．That; that

16、The environment is getting worse in the present days, so the government must take _______ to stop people _______ too many trees．

A．methods; to destroy                                    B．methods; from destroying

C．measures; from destroying                          D．measures; to destroy

15、We are very annoyed ______ his mistake, because we have emphasized this for several times．

A．at/about          B．with         C．on           D．to

14、Wherever he goes ,the young man is able to readily____ himself to new environment．

A．include           B．contain            C．accommodate         D．hold

13、_________ countries and areas have been seriously hit by the typhoon．Now people in the affected

areas are ______food and fresh water．

A．A number of; lacking in                               B．The number of; lacking in

C．A number of; lacking of                             D．The number of; lacking of 

12、The soldier was ____of running away when the enemy attacked．

A．charged            B．scolded            C．punished         D．accused

11、Never_______ forget the days when _____together with you．

A．shall I; I lived                                           B．shall I; did I live

C．I shall; I lived                                          D．I shall; did I