1 Listen to the sentences and circle the words you hear. 听句子，圈出听到的单词。
(1) thick/think
(2) wrong/round
(3) pink/paint
(4) song/sound
(5) long/loud
(6) drop/drink
(7) thank/stand
(8) ring/run

1.

2 Look at the signs and complete the rules. 看标识，补全规则。

(1) Mind the .
(2) Don't on the door.

(3) Don't .
(4) Use the .

(5) No .
(6) Please .

2. gap、lean、turn left、escalator、littering、wait in line