Question

He is only one of the students who（ ）invited to the meeting. A have been B Has beenC.Had been

Answer 1

此题应选A。如果是the only one的话，就应选B。
在“one of+复数名词+定语从句”中，定语从句一般被看成修饰复数名词，因此该从句的谓语用复数形式；在“the only one of+复数名词+定语从句”中，定语从句常看成修饰单数名词，从句谓语用单数形式。
希望能帮到你哦！O(∩_∩)O~

Answer 2

你好。答案是A
记住以下句子，对你的高考有用：
1 He is only one of the students that / who are from London. (注意：only的前面没有the)
这里are的主语是the students,不是only one.
2 He is the only one of the students that is from London. (注意：only的前面有the)
这里第二个is的主语是the only one,不是the students.

Answer 3

答案是B
因为前面有only,表示仅有。

Answer 4

选B， Has been

Answer 5

选A who代指“the students",是复数