.If this computer does not give complete satisfaction, please return it to the maker stating when and where it was ________.
Now that taking exercise will build up your , you should try to run in the morning.
I don’t think she saw me just now. She_________ the beautiful vases.
Helen said she would come to my birthday party, but she hasn’t yet.
____some doubt among scientists about the cause of cancer.
---Try not to work yourself too hard. Take it easy. --- Thanks. _________