________ you have seen things like these before doesn't matter.
| A．If | B．Whether | C．What | D．When |
The new spokesperson of China’s Foreign Ministry, Ms Hua Chunying is reported _______ in Jiangsu Huaizhou High School.
| A．to study | B．to have studied | C．to have been studied | D．to be studying |
Light-to-moderate smokers were ________ to die of sudden heart problems than those who had never smoked.
| A．as twice likely | B．twice more possible |
| C．twice more likely | D．as twice possible |
A teacher’s ________ to education is worth great respect of the whole society because it brings benefits to the development of society.
| A．guidance | B．principle | C．identity | D．devotion |
Student loan is supposed to provide financial support for people who would ______ not be able to go to college.
| A．otherwise | B．meanwhile | C．therefore | D．nevertheless |
It was ______ the president's speech that the secretary spent the whole morning at home.
| A．to prepare | B．preparing | C．prepared | D．be prepared |