I've decided to keep all these stamps as they might be ________ some day.(2012·天
津联考)
| A．of great value | B．much valuable |
| C．of many value | D．very valuable |
He asked a lot of questions, none of ______ was easy to answer.
| A．which | B．them | C．what | D．that |
He asked a lot of questions, and none of ______ was easy to answer.
| A．them | B．which | C．what | D．that |
He told me that he had two girl-friends, neither of _______ knew anything about the other.
| A．whom | B．them | C．which | D．who |
He told me that he had two girl-friends, and neither of _______ knew anything about the other.
| A．them | B．whom | C．which | D．who |
All of the flowers now raised here have developed from those _____ in the forest.
| A．once they grew | B．they grew once | C．that once grew | D．once grew |