While other scientists are keeping__ __eye on changes in the H5N1 bird flu strain, the scientists in England are working on vaccines, in case it becomes highly infectious in __ __humans.
| A．a , / | B．an, / | C．the, an | D．an, the |
Tell them the basic proposal and what they can gain, and ______ the big details unless they request for more information.
| A．bring out | B．let out | C．leave out | D．make out |
China has been pushing the reform of public hospitals _______ all its citizens.
| A．in charge of | B．for the purpose of |
| C．in honor of | D．for the benefit of |
—How do you _____ your reading speed?
—The speed is measured by how many words per minute you can read.
| A．calculate | B．practise | C．evaluate | D．ensure |
“How could you lose so much money?” John asked his wife, eyeing her angrily from _____ the kitchen table.
| A．at | B．across | C．through | D．on |
In his lecture, the professor referred to the belief, in contrast to all other countries, _____ the elderly are wise, _____ is particularly dominant(占优势的) in the Chinese culture．
| A．that; one that | B．that; that | C．which, which | D．that; one |