【题目】____ the help of the teacher, the student who wasn’t good at math ____ the difficult problem quickly.
A. Under; worked out B. With; worked
C. Under; solved D. With; solved
在线课程【答案】D
【解析】
考查固定搭配和时态。固定搭配with the help of在…的帮助下；work out计算出，制定出；work on从事于；solve解决。句意：在老师的帮助之下，那位擅长于数学的学生很快就解决了那道数学题。结合句意可知句子用一般过去时态，故选D。