That speed______ light travels is 300,000 km per second.
This is the teacher_______ I borrow the book.
Don’t bring the children to see the animals_______ they are afraid of.
4. The person______ you should be grateful to for a peaceful South Africa is Nelson Mandela.
Harvard is a world-famous university______ Wang An got his doctor’s degree.
Wang An spent 3 years in Harvard University______ he studied applied physics.
In 1951 Dr. Wang founded his own company______ computers were made.
He became a very successful entrepreneur in the US in 1985, ______ he made $3 billion.
This is Dr. Wang______ the computer belonged.
Robben Island is the place______ Mr. Mandela once was kept.