You should go to bed early, ____________you will feel tired in the morning.
The CDs ____ in the bookcase and the notebook ______ under the dictionary.
It's bad ______ you ______ read______ bed.
My pen pal __________ Japan.
There is _____airport in Liaocheng. _______ airport is very large.
________ food is important for us. It’s good for our________.