单项选择题

（）I’d like to welcome you to the conference.

A.All first
B.First of all
C.Of all the first
D.All of the first

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单项选择题
Night classes are （）

A.a good idea
B.good ideas
C.good idea
D.the good idea
单项选择题
（）Joe first heard of the man referred to as a distinguished artist.

A.It was Steven that
B.It was Steven who
C.It was from Steven that
D.That was from Steven
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