.
The driver was at ______ loss when ________ word came that he was forbidden to
drive for speeding.
| A．a, the | B．/ , / | C．the, the | D．a, / |
Russia's withdrawal of its experts from China did not strangle (压垮) the Chinese people; _____ it stirred up their enthusiasm for greater exertions.
| A．on the other hand | B．on the contrary |
| C．to the contrary | D．in consequence |
She has lost her handbag with the _____ sum of $150 in it.
| A．extraordinary | B．important | C．considerable | D．valuable |
Many people complain of the rapid _____ of modern life.
| A．rate | B．pace | C．speed | D．growth |
The government is _____ and will take the necessary steps to maintain security and stability.
| A．on the alert | B．out of control | C．on guard | D．in vain |
The rapidly growing birth rate brings about a lot of environment problems, which the government is supposed to take _____.
| A．significantly | B．severely | C．earnestly | D．seriously |