fill in the blanks with the right words or phrases.

Fill in the blanks with the right words or phrases.

你好，
答案是：

laughing
解析：hear sb doing听到某人正在干某事

played
解析：看到yesterday用过去时

traffic lights

arrive in

祝：学习进步，更上一层楼！ (*^__^*)
不明白的再问哟，请及时采纳，多谢！~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

passwords \ observe \ presentation \ ensure \ reception desk \ casual

1 appreciation 2 global 3 tolerate 4 crucial 5 lead to 6 in addition 7 avoid 8demand 9 maintain 10 was transfered

appreciation
global
tolerate
crucial
lead to
in addition
avoide
demand
maintain
transfer