Life ____ be much happier if we ____ only be born at the age of 80 and gradually approach 18.
— Will 1000 dollars ______ the bill?— Of course, more than sufficient.
—You must do as I told you.— ______ I don’t?
Robert failed to seek a job for his poor education, though he is _______ to get one to support his family.
More highways have been built in China, ______ it much easier for people to travel from one place to another.
As he reached ______ front door, Jack saw ______ strange sight.