---Itreallyshockedusthatheshouldhavemadesuch           ...

问题详情：

--- It really shocked us that he should have made such             rapid progress in his study in such a short time.

--- No surprising. He has been making               most of his spare time to study.

B.   a; the                           B. a; /                           C. /; the                        D. /; /

【回答】

C

知识点：冠词

题型：选择题