With dinner _____, the lady went on ____ some sewing.
A．to prepare; to do
B．preparing; doing
C．prepared; to do
D．to be prepared; doing
答案：C
题目分析：可以：晚餐准备好了，这个女士继续缝纫。第一空使用了with复合结构“with+宾语+宾语补足语”，因为晚餐准备好了，所以用过去分词表示动作的完成，第二空填to do，go on to do sth继续做不同的事情，go on doing继续做相同的事情，所以选C。
To make our digestive (消化的) system work well, we should avoid doing some things after having a meal, for example, drinking water. It is true that a person should drink 8 glasses of water every day to stay healthy. However, drinking water right after eating or even during a meal may disrupt (扰乱) digestion. It might affect the natural levels of acid and bile (酸和胆汁) that are necessary for proper digestion. What’s more, drinking cold water after eating might slow down digestion. So try to avoid drinking water at least an hour after a meal, and avoid drinking it while eating. Though walking after eating is healthy, doing it immediately after a meal is not. Doing so will make it difficult for the digestive system to take in nutrients (营养) from the food. Besides, the blood will flow towards other parts of the body, like legs, hands, etc., which will make the digestive tract not have enough amount of blood flow that is needed for proper digestion. So we should wait for at least 2 hours after eating, and then begin exercising. Sleeping should also be avoided right after eating. This is because going to bed right after a meal will lead to improper digestion. What’s more, such a habit will also make you put on a lot of weight. Therefore, wait for an hour or two, and then go to sleep. Many of us have the habit of drinking tea just after lunch or dinner, which is really unhealthy. The tea leaves contain a large amount of acid which prevents the protein in the food from digesting. The best time to drink tea is at least one hour after eating. Eating fruits right after a meal may fill the stomach with air and cause discomfort. They will also take time to reach the digestive tract, disturbing the entire process of digestion. To protect your stomach from digestive problems, eat fruits before or after 1-2 hours of a meal. In a word, if you avoid doing all the above things after eating, you will surely make your digestion easy, and you will be less likely to have digestive problems.
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