填空：
1.helping
2.was lost
3.returned
4.make
5.getting
改错：
1.What (加入a) lovely blouse!
2.They're still waiting (加入for) the results of the investigation.
3.The child (加入whose) parents died in the car accident is feeling completely lost.
4.She lost (加入her/the) car keys in the parking lot.
5.It all depends (加入on/upon) how many people you want to invite to dinner.
6.(加入The) Atlantic Ocean washes the coast of Brazil.
7.He was watching TV when someone knocked (加入at/on) the door.
填空：
1.on,on/in,at/in
2.into / out of
3.at,at
4.in,into,at/on
5.on,at,in
6.at,in,on或at,on,of
7.over
8.at/in,on,in