Sally has been swimming ______ four hours.
| A．for about | B．since | C．about | D．/ |
Margaret Hilda Thatcher ______ passed away on April 8th, 2013 is the first woman-leader in British history.
A. whom B. that C. which
—Which of the two jackets will you take, Jane?
—I’ll take ________. I have spent all my money buying the books.
A. both B. either C. neither
Don’t worry. I won’t _______ much of your time.
A.take down B. take off C. take up
You will not win the first prize ________ you work harder.
A. if B. unless C. or
Our playground is not so tidy and beautiful as before. Students must _____ dirty things on it.
A. be stopped to throw
B. be stopped from throwing
C. stop to throw