This shop will be closed for repairs __________ further notice.
| A.with | B.until | 
| C.for | D.at | 
Tuesday being _________ windy, cold day in Beijing, the President tours _______ Forbidden City in Beijing, wearing ________ blue shirt with no tie and a casual leather jacket.
| A.a; the; the | B.a; /; a | C./; /; a | D.a; the; a | 
_______________ while writing, he locked himself in his study.
| A.Not to interrupt | B.Not being interrupted | 
| C.Not to be interrupted | D.Being not interrupted | 
The incomes of skilled workers went up. ______, unskilled workers saw their earnings fall.
| A.Moreover | B.Therefore | C.Meanwhile | D.Otherwise | 
The further falling of the stock market as reported today has _______ a fresh wave of selling.
| A.given off | B.set off | C.put off | D.got off | 
In the current situation, ___________ the dollar goes above 1.85 reais, investors sell the greenback to take some profit.
| A.whenever | B.however | C.whatever | D.whichever |