单选题 ______ in his work, Tom simply forgot food and sleep.

单选题 Her performance was perfect and, _____ the fact that there were other 20 participants, the first prize still belonged to her.

单选题 People who often exercise and stay active are much less likely to develop heart disease than people who rarely move, ________ that exercise consists of a few minutes a day of jogging or multiple hours a week of walking.

单选题 The party will be held in the garden, weather ______.

单选题 ______, the conference began.

单选题 Much time ______ sitting at a desk, office workers are generally troubled by health problems.

单选题 How come Meng Wanzhou, Huawei CFO, was arrested in Canada, _____ she didn't violate any Canadian law?

单选题 Public schools in the United States have to be neutral about religion ____ they close for holidays like Christmas.