Martin has been working hard and comes top in the class.— It is his mother’s love that helps him feel good about .

I like to go hiking _____ my pet dog in the evening. [ ]

Mr. Wang’s never been to Canada, has he?—. He went there on business last week.

Liu Xiang came third ______ the 110-meter-hurdle race last month in Shanghai. [ ]

You’re supposed to hand in the travel diary as soon as possible.—I see. I’m going to _________until 11:30 pm once more.