【单选题】
This technology has been ?around for a long time, but not until recent years _______ it in marketing.
③
businesses had employed?
④
had businesses employed
【单选题】
19.Though she talks little, she has made _______ friends here.
【单选题】
Pop music is such an important part of society [] it has even influenced our language.
【判断题】
Each country has not its own laws about what can or cannot be brought from abroad.
【单选题】
it has been revealed that some government leaders _____ their authority and position to getillegal profits for themselves.
【判断题】
Ever since he arrived, he has been complaining constantly about the weather.
【单选题】
Information has been put forward ___ more middle school graduates will be admitted into universities.
【单选题】
We came finally _________ the conclusion that she has been telling lies all the time.
【单选题】
He used to in a small village, but now he has been used to in the big city.
【单选题】
The guard has been asked to_______the door, but so far the door is still closed.