日本成人片在线_久久免费精品视频_国产午夜精品久久久久久免费视_校花撩起jk露出白色内裤国产精品_av影片免费在线观看_国产小视频在线看_最新av免费在线观看_99久久99久久精品国产片_欧美成人猛片aaaaaaa_蜜桃免费网站一区二区三区

I wrote a letter of complaint(投訴)，and the airline have promised to _______the matter．    

I wrote a letter of complaint(投訴)，and the airline have promised to _______the matter．    

A．1ook at．    B．1ook into    C．1ook after    D．1ook out

After 15 years in the USA，he has finally decided to__________American citizenship.

A．concentrate on　 B．apply for　　　 C．1ook out for　　　 D．appeal to

we can’t wait any longer．We must _______a new way to solve the problem right away．

     A．make up                B．figure out       C．1ook out          D．pick up

I wrote a letter of complaint(投訴)，and the airline have promised to _______the matter．    

A．1ook at．    B．1ook into    C．1ook after    D．1ook out