—Sorry,Mum, I lost my key to the bicycle again. —Oh! How_____ you be so careless! You have to learn to look after your belongings.
The two researchers originally set out to study the zebras in Africa and discovered a new species of tiger ______.
The police warned that anyone ______guilty of taking drugs in that country would be put in prison.
–Have you listened to ______ weather forecast, Linda? –Yes. It says that there will be ______ heavy rain this weekend.
–Is it all right if I sit here? –______, sir. The seats are for elderly people only.
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