答案：A测试点：谓语／主谓数的一致.分析：calcium后面是省略了关

答案：A测试点：谓语／主谓数的一致.分析：calcium后面是省略了关系代词that的定语从句，从句缺谓语动词。答案中(A)(B)均可能作谓语，但从句主语为复数的bodies，故选复数形式的(A)。(C)(D)均为动词的非谓语形式

Kết quả (Anh) 1:

Answer: a testing point: predicate/verb number agreement. Analysis: calcium followed by omitting the relative pronoun that attributive, we lack the verb. Answer (a) and (b) may predicate, but subject to a clause complex bodies, so the optional plural forms (a). (C) (D) for the non-finite verb forms

Kết quả (Anh) 2:

Answer: A test point: consistent predicate / subject-verb number Analysis: Behind calcium is omitted relative pronoun that the attributive clause, clause predicate verb missing. Answers (A) (B) are likely to be used as predicate, but the subject is plural clause bodies, so choose the plural form of (A). (C) (D) are non-predicate verb form

Kết quả (Anh) 3:

Answer: a test point: predicate / subject verb number. Behind the calcium is the omission of the relative pronoun "that attributive clause, the clause lack of predicate verb. The answer (A) (B) are likely to be the predicate, but the subject of the clause as the plural of bodies, so the plural form of the election (A). (C) (D) are non predicate forms of verbs.