We’d better ____ out .It’s going to rain.A. not to go B. don’t go C. not go
Wearing white can help people _______when they feel stressed.
You’d better wear a pair of comfortable trainers when ________a long walk.
一Look! That teacher is explaining something to her students again and again! 一_______teacher she is!
Though he got up early, ______ he missed the train.
You are _______ out all the difficult problems .