The little boy ________ his seat to an old lady on the crowded bus.
Let’s go to Kunming for vacation. It’s_______ too hot_______ ______ too cold there.
I sent her a invitation, ________ he didn’t receive it.
Wearing red makes_____ easier for you to take action.
— I am going back to America for Thanksgiving Day.—_______. And we will miss you.
I discovered that listening to ______is the secret ______language learning.