As is known to all, earthquakes are ___________ disasters _________ can destroy buildings and kill people.

If you happen to go to that river, you’ll find it more dangerous than commonly _______.

Are these books ____.— No. they are not mine. They belong to ______.

Scientists are convinced______ the positive effect of laughter______ physical and mental health

Everyone went to the old man’s home _________ Lucy. She was ill and had to stay at home.— What a pity!