Her sons, both of ______ work abroad, will come back home this summer.
________ cleaning the yard and making up the beds for the old, we also read newspapers for them and had chats with them.
Though Tom knew nothing about business, he succeeded ________ other more well-informed managers failed.
Everyone will go through life's stages of ups and downs, ________ selfrespect plays a key role in the maturity(成熟) of a person.
Here is a list of names of the guests to be invited to the party. Please don’t _______ any of them when typing.
We can hardly believe that an intelligent person like Daniel ________ be asking such a silly question.