Only when he left his home _________ to know how important the family was for him.
A.he began B.did he begin C.had he begun D.he had begun
We should consider students’ suggestion _________ the school library provide more books on popular science.
A.that B.when C.whether D.why
Life is like a long race _______ we compete with each other to go beyond ourselves.
A.where B.which C.that D.what
The reason ________ he didn’t come to school on time is ________ he had to take care of his sick brother at home.
A.That; because B.that; that C.why; because D.why; that
The companies are working together to create _________ they hope will be the best means of transport in the 21st century.
A.which B.that C.one D.what
This is the last factory ________ he used to work at, many workers of _______ still have a good relationship with him.
A./; it B.which; whom C./; which D.which; that
