单项选择题
—This pen isn't yours, is it — ().
A. Yes, it's not mine B. No, yours is bigger C. No, it's my friend's D. Yes, mine's a red one
单项选择题 We've made some achievements, but there is still a long way ().
单项选择题 —Can you come on Monday or Tuesday —I'm afraid () day is possible.
单项选择题 Why do you want a new job () you've got such a good one already
