—You look so worried, what’s wrong?—More and more people like me become to worry about the __________ pollution after the haze (雾霾) appeared in Beijing and some other cities in China.
I’m happy to hear that we are going to have a school trip __________ in November.
Wearing white can help people _______when they feel stressed.
It’s not wise ______ think you are always right.
----Can you understand what I mean? --- Sorry, I can ______ follow you.
The boy looks nice _________ white and the red sweater looks good _________the girl. A. with , on B in , on C. on , in D. in , with