1Oh,the
milk
___strange,do
you
think
It's
ok
to
drink?
A
is
tasted
B
is
tasting
C
tastes
D
tasted
C，系动词tastes＋a./prep.短语，构成主系表结构，表示事物的特征，用主动表被动，
2
Could
you
tell
me
which
__best
among
the
books
on
sale?
A
is
sold
B
sells
C
are
written
D
writes
B，which
引导的问句谓语动词常用单数形式，C错
，best
是well的最高级形式，动词：wash/sell
+well/easily表示主语的特征时，常用主动表被动，所以答案选B
3You
may
go
fishing
if
your
homework___tomrrow.
A
is
done
B
will
be
done
C
has
done
D
have
done
A
，由于You
may
go
fishing
if
your
homework___tomrrow.中的“if”表“如果”，应用一般现在时对应将要发生的事情“去钓鱼”，而且your
homework与do
之间存在被动关系，所以答案选A，被动语态的一般现在时。
我的解释你好好看看，你会明白了吧，答案满意吗？
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