单选题
He was in low spirits. Try as we would, we couldn't get him to______up.
【正确答案】
D
【答案解析】解析:cheer up(使)高兴起来,(使)振作起来(如:I cheered up at the good news.The news cheered him up.)。pick up拿起,捡起:(停下车)让人上车;好转,改进,提高(速度)。turn up到达(约定地点),出现;(东西)被找到;开大,调大(音量等)。show up(按约定)来到,露面。