. If a teacher gives a student _______ hearty smile, the student will treat the teacher as _______ agony aunt.

         A. The; the                          B. 不填; an                        C. 不填; the                      D. a; an

—It’s a pity that Wang Qiang failed in the driving test again.

—How can you expect him to pass _______ he hasn’t been practicing enough?

       A. when                  B. once               C. unless                 D. though

. Students are often reminded that chances _______ to the well-prepared.

       A. belong                                                              B. are belonged

C. are belonging                                                         D. will be belonged

 —Mike, do you want Kobe Bryant shoes or James shoes?

   —Daddy, _______ I choose? I like both pairs.

         A. shall                                 B. must                                C. can                                   D. may

. —Has the conference about building a water-power plant come to an end?

—No, it’s _______. Experts just disagree on some issues.

         A. under discussion          B. under control                C. under consideration    D. under way

 It is surprising that Jack, who is only 39 years old, _______ in the field of engineering for 20 years when he entered the company last month.

         A. worked             B. had worked          C. has worked        D. working

. A nature reserve for white-flag dolphins was set up in 1992, _______ boats have been 

prohibited from sailing around since then.

A. where                                B. which                               C. when                               D. what

 The UN does not have its own army. _______, it borrows soldiers from different countries.

          A. Moreover                     B. Anyhow                           C. Instead                           D. Somehow

. With the whole village _______, the villagers had to move to higher land, waiting for help.

         A. flooding                                                                         B. having flooded             

C. flooded                                                                          D. to be flooded

 It has been widely accepted that only when the students take an active part in the class activities _______ the most effective.

         A. teaching will be                                                           B. will teaching be

         C. has teaching been                                                      D. teaching has been