Помогите с английский, кто знает ))

1) Complete the pairs of sentences with one of these verbs in the correct form, then match each verb with its meaning in a-h below
maintain - strike - avoid - prove в пропуски

1 a. In 1926 John Logie Baird ___ that you could transmit pictures by radio.
b. Watching television has___ to be one of our most popular pastimes.
2 a. If you want to___ bad headaches, watch less TV!
b. Brad didn't go to the cinema. He wanted to___ Phoebe.
3 a. The army gathered behind the hill, ready to___ .
b. Although the climber___ by a falling rock, he wasn't badly injured.
4 a. The psychologist ___that too much television was bad for your health.
b. It's often difficult to___ colour photographs. After a white the the original colours change

a - keep in good condition
b - say something is true
c - prevert
d - keep away from
e - show something is true
f - hit something
g - turn out to be
h - attack suddenly