$\text{5.Missing verbs}$
2.fly
3.open
4.watch
5.learn
6.smoke
7.carry
8.sit down
9.wash
10.ask
11.play
12.eat
13.kick
14.happen
15.hurt
$\text{13.Missing verbs}$
2.hears
3.leave
4.speaks
5.look at
6.counts
7.finishes
8.copies
9.helps
10.draws
11.lose
12.understand
13.kills
14.has
15.tries
$\text{19. Prepositions 2 (time)}$
2.on
3.for
4.at - in
5.at
6.on
7.at
8.in
9.in
10.for - in
11.in
12.on