_____ your advice, I would have had no trouble with my papers.
| A．Had I followed | B．If I followed | C．If I have followed | D．Once I followed |
To his parents’ great joy, all their son’s years of hard work finally ____.
| A．set off | B．paid off | C．took off | D．got off |
____ is certain, though, is that “the curse of the mummy” remains a riddle to this day.
| A．As | B．Which | C．It | D．What |
Upon their entering the tomb, Carter’s lucky pet bird, which he ____ in Cairo, was swallowed by a snake.
| A．was left | B．had left | C．left | D．was leaving |
You just can’t imagine what effect these people’s achievements have ____ our lives today.
| A．on | B．in | C．with | D．to |
The best times to visit Shangri-la are spring and autumn ____ the temperature is at its mildest.
| A．when | B．where | C．that | D．which |