答案：C测试点：主语／动名词.分析：本句所缺为句子主语，其后的by…短

答案：C测试点：主语／动名词.分析：本句所缺为句子主语，其后的by…短语表示方式，说明这个主语是一个动作，应考虑其可能是动名词或动名词短语。答案中(C)是动名词短语。(A)是动宾结构；(B)中心词是problems而非动作;(D)是句子.

Kết quả (Anh) 1:

Answer: c test points: subject/gerund. Analysis: the word of the missing as the subject of the sentence, followed by ... Phrases said to prove that the subject is an action, should be taken into account may be the gerund or gerund phrase. Answer to (c) is a gerund phrase. (A) is a verb-object structure and (b) Word problems from the Center rather than the action; (d) sentence.

Kết quả (Anh) 2:

Answer: C test point: Subject / gerund analysis: This sentence is the missing subject of the sentence, followed by ... phrase representation, indicating that the subject is an action should be considered which may be gerund or gerund phrases. Answers (C) is a gerund phrase. (A) is a verb-object structure; (B) the center of the action rather than word problems; (D) is a sentence.

Kết quả (Anh) 3:

The answer: C test point: subject / verb noun... The phrase means that the subject is an action, it should be considered that it might be a noun or a noun phrase. The answer (C) is a dynamic NOUN phrase. (A) is a verb object structure; (B) the central word is D rather than problems.