The factory had to______ a number of  employees because of economic decline in the country.

A.lay out            B.lay off              C.lay aside                     D.lay down

—Why were you not at the concert?

—I________ a close game between two European football teams.

A.watched                                               B.had watched

C.was watching                                          D.have been watching

—The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job?

—____ my students have a try?

       A. Shall                       B. Will                         C. Could                      D. Should

His composition was so confusing that I could hardly make any ________of it what’s over.

A．meaning                B．message                        C． information           D．sense  

Your mother, however, ____ say that to us that day.?

　　A. does   B. did    C. is doing    D. was doing?

.Please make my excuse at tomorrow's meeting. I've got too much work _____.?

　　A. to do to come    B. doing coming?   C. to do coming     D. doing to come??

Good luck to you, and _____ all your wishes come true.?

　　A. can        B. may?     C. must        D. should ??

He ran as fast as he could _____ to catch the bus.?

　　A. hope    B. to hope　   C. hoping  D. hoped?

The person we referred to（提及）____ us a report tomorrow．

  A．giving   B．will give   C．gave   D．give

To save some of the human languages before they are forgotten, the students in our school started a discussion “Save Our  ________”

A. Sky                            B. Life                           C. Arts                          D. Voices