答案：B测试点：介词宾语。分析：介词for后面应接名词性的成份作其宾语

答案：B测试点：介词宾语。分析：介词for后面应接名词性的成份作其宾语。4个答案中只有(B)是以名词sundials作中心词的词组，可作介词宾语。

Kết quả (Anh) 1:

Answer: b test point: the prepositional object. Analysis: behind the preposition for Bell nominal composition as its object. 4 answers, only (b) is a noun sundials for noun phrases, prepositional object can be made.

Kết quả (Anh) 2:

Answer: B test point: preposition. Analysis: The preposition for the back of the ingredients to be a noun as its object. 4 answers only (B) is the center of the word as a noun phrase sundials can be used as object of a preposition.

Kết quả (Anh) 3:

The answer: B test point: the object of the preposition. Analysis: "for" should be followed in nominal composition as the object. Only (B) in the 4 answer is the phrase of the central word in the noun sundials, which can be used as the object of the preposition.