Today, when scientists examine mummies, they wear special clothing for protection _____ they breathe in harmful gas.
—Why haven't you bought any butter? —I ____ to, but I forgot about it.
The dress of this kind doesn’t suit me.Would you please show me ______ one?
—What was the party like? —Wonderful.It’ s years ____ I enjoyed myself so much.
Now when people refer to England, you find Wales ____ as well.
—What’s the best way to ____ the disease caused by biting insects? ——Ah, don’ t bite any!