If this product does not give you complete satisfaction, please return it to the manufacturer, stating when it ________.
| A．is purchased | B．will be purchased |
| C．purchases | D．has purchased |
89. His term papers mainly _____ the history of social developments in Song dynasty.
| A．does with | B．treats | C．deals with | D．Deals |
88. Around the area of Aswan there are a lot of important old temples, which____ ____about 1250BC.
A.dated from B. began with C. started with D. opened from
87. People _______ round to get a better view of famous film stars.
| A．crowded | B．combed | C．counted | D．come running |
86. The river is too deep; we can’t _______ it.
| A．go | B．cross | C．across | D．Through |
85. When she heard that she failed in the exam, she ______ her face with her hands.
| A．caused | B．created | C．wash | D．Covered |