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Can you fix the watch for me? It hasn’t _____ for many days.  

---- How is the programme?

---- The answer is _____

 ________ him more time, and he _____ show us his talent.

Remember to give me a call ______ you arrive in Beijing.

I would have met him ______ to the cinema last night.

Is this factory _____ your sister used to work?

Many a student _____ going to attend the meeting tomorrow.

The question is ______ we can help him out of the trouble

— Jannie, you should finish your assignment before Friday, understand?

— _____. I will finish it on time.

The findings come ___36___ a study of nearly 1,000 US people that looked at diet, calorie intake and body mass index (BMI) - a measure of obesity.___37___ is found that those who ate chocolate a few times a week were, on ___38___, slimmer than those ___39___ ate it occasionally. Even though chocolate is loaded with calories, it contains ingredients（材料）that may favour weight loss ___40___ than fat synthesis, scientists believe.___41___ boosting calorie intake, regular chocolate consumption was related to lower BMI in the study, ___42___ is published in Archives of Internal Medicine. The link remained even when other factors, like how ___43___ exercise individuals did, were taken into ___44___.And it appears it is how often you eat chocolate that is important, rather than how much of it you eat. The ___45___ found no link with quantity consumed.

___46___ to the researchers, there is only one chance in a hundred that their findings could be explained by chance alone. Lead author Dr Beatrice Golomb, from the University of California at San Diego, said: "Our findings appear to add to a body of information suggesting that the composition of calories, not just the number of them, matters for determining their ultimate impact on weight."This is not the first time scientists ___47___ that chocolate may be healthy for us. Other studies have claimed chocolate may be good for the heart. Consumption of certain types of chocolate has been linked to some favourable changes in blood pressure, insulin（胰島素）sensitivity and cholesterol（膽固醇）level. And chocolate, ___48___ dark chocolate, does contain antioxidants（抗氧化劑）which can help to mop up harmful free radicals - unstable chemicals that can damage our cells.

Dr Golomb and her team believe that antioxidant compounds, called catechins（兒茶素）, can improve lean muscle mass and reduce weight  ___49___ studies in rodents would suggest this might be so. Mice ___50___ for 15 days with epicatechin (present in dark chocolate) had improved exercise performance and observable changes to their muscle composition.They say clinical trials are now needed in humans to see ___51___ this is the case.

But before you reach ___52___ a chocolate bar, there are still lots of unanswered questions. And in the absence of conclusive evidence, experts advise caution.While there's no harm in allowing yourself a treat like ___53___ now and again, eating too much might be harmful because it often ___54___ a lot of sugar and fat too.And if you are looking to change your diet, you are ___55___ to benefit most from eating more fresh fruits and vegetables.