The more one is ______the English-speaking environment, the better he or she will learn the language.
| A．exposed to | B．filled in | C．caught on | D．kept up |
Today, housework has been made much easier by electrical _____.
| A．facilities | B．appliances | C．instruments | D．equipment |
Pack the cake in a strong box, or it might get _____ in the post.
| A．splashed | B．spilt | C．crushed | D．crashed |
. Professor Smith and Professor Brown will _____ in giving the class lectures.
| A．exchange | B．alter | C．shift | D．alternate |
In a typhoon, winds _____ a speed greater than 120 kilometers per hour.
| A．assume | B．accomplish | C．attain | D．assemble |
. Despite all the evidence to the contrary, the witness _____ that his story was true.
| A．stuck out | B．stood out | C．kept down | D．held up |