I was caught in the traffic jam this morning; ______, I would have come on time.

--___do you clean the reading room? ---Every two or three days.

The Minister of France stresses that the quality of goods , _______ the quantity of production , is the key to improving the nation’s economy .

Much to my surprise, the eight-year-old boy       fixed my computer within ten minutes．

--How about this dress, sir? --It’s a little expenseive, and ____, its color doesn’t suit me.