Chọn đáp án đúng: To reduce means to ______

8. To reduce means to ______ 
A. increase                B. decrease                C. destroy                              D. rise
 9.   My mother often goes to work _______ foot.
A. by                          B. on                           C. in                                        D. at
10. There _______ a pen and two books on the table.
A. are                         B. is                            C. be                                       D. have
11. _______ are you going to visit next summer?
A. Where                   B. which place          C. What                                  D. When
12. The small pen box is Tom’s. Mine is the _______.
A. big                         B. bigger                    C. biggest                               D. smaller
13. They didn’t cancel their picnic _______ the weather was cloudy.
A. because                 B. although                C. but                                     D. so