Choose the best option

III. Choose the best option (A, B, C or D) to complete the following sentences. (1,5pts)
1. We’ve decided ………. in Ho Chi Minh City for three more days.
A. to stay                    B. staying        C. stayed                     D. stay
2. Communication breakdown may happen due to  cultural ………….. 
A. differences            B. difference                C. different             D. differ
3 He told his classmate that he ………. a bicycle when he was ten years old.      
A. will ride                B. would ride              C. could ride                     D. rode       
4. If  each person plants a tree, there ……….. a lot of trees. 
A. is                           B. are                            C. will be                    D. were
5. …….. is closest to the North Pole.
A. America               B. Canada                      C. New Zealand          D. Australia
6.  People from other planets may use ………. to communicate, which is not possible for human beings
A. landlines             B. letters                    C. chat rooms                D. telepathy