The greatest pleasure I know is to do a good action quietly, and to have it _____ by accident[ ]

How are you getting on with your workthese days——______.

________shall we paint the walls?—- I prefer white. It makes us feel calmand peaceful.

The factory used 65 percent of the raw materials, the rest of which ________ saved for other purposes.

Since the mid-1980’s, growing numbers of Asians ___ in New Zealand, and they ___about six percent of the total population