___________, he would have been fired.
| A．Had he lied to the boss | B．Did he lie to the boss |
| C．If he has lied to the boss | D．If he lies to the boss |
155. In Beijing volunteers are making use of every minute to ______ their foreign languages because volunteers must pass a written test and an interview.
| A．polish up | B．take up | C．put up | D．make up |
156. As is known to all, hard work will _____ in time.
| A．pay out | B．pay back | C．pay up | D．pay off |
157. The journey that _____ change Toby’s life started in July that year.
| A．would | B．was going to | C．was about to | D．was to |
158. It is said in the book that Thomas Edison _____ the world leading inventor for about sixty years.
| A．would be | B．has been | C．was | D．had been |
159. The wages ______ him will be paid tomorrow.
| A．due to | B．because of | C．thanks to | D．according to |