26. the can overturned and everyone ...... ỉto the deep river A. fall B. fell C. felt D. feld                                        27. the games were ..... important that they stopped fighting for a time A. so   B. too  C. very   D. surch              28. this is an emergency. Please ..... an ambulance to Cua Viet beach A. to sending  B. sending     C. to send  D. send, 29. of the all members in my family, my grandpa is ...... A. odest   B. the oldest   C. most old     D. the most old, 30. how long ....... here ?  A. do you live   B. did you live    C. have you live    D. have you lived   31. we are having to help them by ...... them do things    A. encouraged     B. encourage     C. to encourage       D. encouraging