题目内容
He is only too ready to help others, seldom, ________, refusing them when they turn to him.
[ ]
A.
if never
B.
if ever
C.
if any
D.
if so
答案:B
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He is only too ready to help others, seldom, ____, refusing them when they turn to him.
| A.if never | B.if ever | C.if not | D.if any |