Ⅰ.单句语法填空
1．The man arrested last night has been charged with murder.
2．There is a newspaper article attacking (attack) the Prime Minister.
3．Lions and tigers are animals belonging (belong) to the cat family.
4．Scientists are convinced (convince) of the positive effect of laughter on physical and mental health.
5．To punish the child，his mother had him standing (stand) in the sun.
6．They are making their way to the supermarket where dozens of goods are at a discount.
7．—Could I sit here?
—Sorry.These seats are reserved(reserve)for the elderly and disabled.
