第63页 - 译林版六年级英语同步练习答案（上下册）

C

B

A

C

made

city

dirty

Do

feel

was

rubbish

were

dead

made

walk

To keep

throw

slips

falls

to clean

1. Black smoke from factories made the air dirty 2. throw rubbish on the ground
3. plant more trees to keep the city clean 4. takes the metro to school/goes to school by metro
5. put rubbish in the bin

1. C 2. B 3. A 4. A 5. C

1. made 2. walk 3. To keep, throw 4. slips, falls 5. to clean