Today’s young people can’t live without smart phones. They keep their hands on the phones whenever they go, even while they_______meals.

许多同学都有自己的电子邮箱，如168@sina.com, pgbook@ 163.com, hifriend998 @ 126.com 等。请问其中的@表示什么意思，该怎么读

Fancy meeting you here! — Pleased to see you. If they ____ me to the party, I ____ here. [ ]

____ the difficulty together, but why didn’t you tell me

It is dangerous to take ________ from rain under a tree especially during a summer rainstorm.