Bob called to tell his mother that he couldn’t enter the house, for he ________ his key at school.
| A．had left | B．would leave |
| C．was leaving | D．has left |
Actually, _____ works hard can be _____ he wants to be, whether it is a pilot, an engineer or a manager.
| A．anyone; whoever | B．whoever; whatever |
| C．who; no matter what | D．no matter who; whomever |
It is said that bad living habits as well as dirty surroundings, stuffy rooms and some other factors _____ the wide spread of H1N1.
| A．result from | B．benefit from |
| C．devote to | D．contribute to |
My parents always remind me to make sure the electricity is turned off while I am having a bath, which would _____ cause danger, leading to a dreadful consequence.
| A．somehow | B．meanwhile |
| C．otherwise | D．therefore |
According to the job advertisement, ______will be given to the candidates with working experience.
| A．presentation | B．profession |
| C．preference | D．protection |
Susan was expecting her favourite singers, but to her disappointment, ______ appeared.
| A．some | B．none | C．everyone | D．no one |