Shopping on the Internet enables people not to searchfor goods from one store to ______

Li Lei did very well in theEnglish exam. ——-Oh, yeah !He is ______ English.

Some people always take seriously the _______ of the complete globe end in the near future.

An awful accident __________, however, occur the other day.

I don’t know ______ he will be back ______ the Dragon Boat Festival.