Mr. Wang made up his mind to devote all he could his oral English before going a

 Mr. Wang made up his mind to devote all he could _______ his oral English before going abroad.

A. improve                                                      B. to improve

C. improving                                                    D. to improving

试题答案

解析：选D。句意: 王先生下定决心出国前把能够投入的都投入到提高英语口语中。devote. . . to. . . “把……投入到……中”，to为介词, 后跟动名词作宾语。all作devote的宾语, he could是它的定语从句, 从句的谓语动词也为devote，与前面重复, 所以省略了。

独具【易错解读】此题易错选A, 是因为做此题时易受情态动词后跟动词原形的思维定势影响。做此题只要把he could后的动词还原就很容易判断答案。

独具【举一反三】

Tom will spend all the time he can _______ us with our English.

A. helping                                                        B. to help

C. help                                                            D. helps

解析：选A。句意: 汤姆将花所有他能花的时间帮我们学英语。此题考查spend time (in)+v. -ing。定语从句he can后省略spend, 将spend还原就很容易判断答案。