A、A.which
B、B. that
C、C. where
D、D. when
答案：C
A、A.which
B、B. that
C、C. where
D、D. when
答案：C
A. A.principal
B. B. primary
C. C. principle
D. D.chiefly
A. A.took up
B. B. kept up
C. C. save up
D. D. drew up
解析：好的，我们一起来分析这道题。 首先，我们要理解题干的意思：Anna退休后曾短暂地从事绘画，但很快就失去了兴趣。我们需要找出一个合适的短语来填空，描述她开始做某件事，但不久就放弃了。 来看一下选项： A. **took up**：意思是“开始从事”。 B. **kept up**：意思是“继续维持”。 C. **save up**：意思是“储蓄”。 D. **drew up**：意思是“起草”。 根据题干中的“for a while, but soon lost interest”，我们可以推断出Anna只是短暂地开始从事某项活动，因此最合适的选项是A，“took up”。 为了更好地理解“took up”，可以想象一下这样的场景：假设你从未尝试过游泳，有一天你决定去学游泳，这就是“took up swimming”。但是如果你发现游泳并不适合你，很快就会失去兴趣。 所以正确答案是A：“took up”。 希望这个解释对你有帮助！
A. A.Completed
B. B. Having completed
C. C. Completing
D. D.To have completed
A. A.get
B. B. got
C. C. are getting
D. D. will get
A. A.had considered
B. B. has been considering
C. C. considered
D. D.is going to consider
A. A. Not receiving
B. B. Receiving not
C. C. Not having received
D. D. Having not received
A. A. he leaves
B. B. he leaved
C. C. does he leave
D. D. did he leave
A. A.has come; have come
B. B. have come; has come
C. C. has come; has come
D. D. have come; have come
A. A. that
B. B. which
C. C. why
D. D. as
A. A. knows
B. B. will know
C. C. has known
D. D. had known
