I. Choose the best option A, B, C or D to complete each sentence (4.0 points) 1. The south Viet Nam was completely liberated ___________ April 30th, 1975. A. in B. on C. at D. to 2. If Phuong comes to England, it ______ a good opportunity for her to improve her English. A. is B. will be C. was D. would be 3. Most children enjoy ______________ advertisements on TV. A. to watch B. watch C. to watching D. watching 4. Her teacher suggested she ________ harder to pass the exam. A. studies B. studying C. should study D. to study 5. He _______ with his friends in an apartment in Ho Chi Minh city since last week. A. living B. has lived C. lived D. have lived