1.Four people a year die of this disease __on__ average in this country.
2.The vegetables didn't taste very good.They __had_been_cooked__(cook) too long.
3.How could he make a __striking__(strike) impression on her?
4.Is there too much sex and __violence__(violent) on TV these days?
5.The heavy rain lasted three days, __causing__(cause) great damage to crops.
6.She picked __up__ a valuable first edition at a village book sale.
7.What was it that caused the man __to_make__(make) so crazy a decision?
8.When Mary found that somebody had stolen her doll, she ended up __crying__(cry) her heart out.
9.They didn't know what to do, so they turned to an __experienced__(experience) engineer for advice.
10.The man said that the next plane would take __off__ in ten minutes.