—Mum, where is my lunch pack?—Just _____ it was.
I really appreciate their ________ you ________ after me while I was ill.
—In my opinion, he is a hardworking man.—________. He is always the first to come and the last to leave.
Since a sharp fall of stockmarket (股市) many people have ________ making other investments (投资).
Some students use their cellphone ________ as a tool of entertainment.
There in Chongqing ________ great changes in climate this year.