5. Soft drink makers aerate their drinks by forcing carbon dioxide to dissolve....pressure. A. into B. Under C. On D. For 6. It took him years to... the shock of his wife dying. A. take on B. Go off C. Put off D. Get over 7 . Pham Tuan said everything... quite strange although he..... When he was on the ground. A. was- prepared C. was - had prepared B. was - has prepared D. had been- prepared 8. - "We appreciate your contribution to the success of our project." -"...." A. It was my pleasure. C. That's alright. B. It pleased me. D. You can say that again. 9, She has burnt the midnight... for a long time so it's fair if she gets an A for herfinal exam. A. gas B. Oil C. Petrol D. Coal 10 . "How should we use this support service". They wondered A. They wondered how we should use this support service. B. They wondered how to use that support service. C. They wondered how should use this support service. D. They wondered how they should use this support service.