stars from the entertainment industry, such as Ke Zhendong and Fang zuming, have recently been arrested, which shows that drug taking is becoming _____ increasingly serious threat to society.

o the shops make money if theysell at such low prices —Manufacturers, it seems, are willing to bring down prices _______ big volume purchases.

Our teacher demanded that all of us ______ English every day.

Goodbye! I’m glad ____ you — ____， too

Can he _______ anything about Canada—No, he can’t. All of us except him _________to Canada.