摘要： He is rather difficult to make friends with, but his friendship. is more true than any other. (2009·烟台市高三英语模块检测) A.once gained B.when to gain C.after gaining D.while gaining
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He is rather difficult to make friends with，but the friendship of his，once ________, is more true than any other．
- A.gained
- B.to gain
- C.having gained
- D.gain
He is rather difficult to make friends with，but the friendship of his，________，is more true than any others'.
A．once gained B．when to gain
C．as gained D．while gaining
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He is rather difficult to make friends with，but the friendship of his，once ________, is more true than any other．
[ ]
A．gained
B．to gain
C．having gained
D．gain