I soon found that the work I was doing had already been done, _____, I was wasting my time.
China and the United States held their first strategic dialogue on August 1 and __ to increase co-operation and constructive relations.
So difficult ____ it to live in an English-speaking country that I determined to learn English well.
Julia is one of the women who always ________ the latest fashion.
--Must I turn off the gas after cooking? --Of course. You can never be ________ careful with that.
_____ it is you’ve found, you must give it back to the person it belongs to.