(2010·天津模拟)Get out of here at once. _________ not, I’ll phone the police.

A. Since               B. If             C. Why                 D. When

(2010·天津模拟)Get out of here at once. _________ not, I’ll phone the police.

(2010·天津模拟)Get out of here at once. _________ not, I’ll phone the police.

A. Since             B. If             C. Why             D. When

（2010·天津蓟县下营中学高三第一次模拟）   7.—Why was he unhappy yesterday?

—A letter from home _____ attack of homesickness.

A. set off B. pay off       C. take off     D. send off

（2010·天津蓟县下营中学高三第一次模拟）   13. Our bodies are strengthened by working out. _____, our minds are developed by learning.

A. Likely B. Similarly    C. Probably    D. Therefore