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【单选题】
决定主族元素在元素周期表中所处位置的是该元素原子的A.
质量数
B.
中子数
C.
最外层电子数
D.
电子层数和最外层电子数
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举一反三
【单选题】I need to buy a new MP4 and cellphone badly but I can’t afford_____.
A.
one
B.
that
C.
it
D.
the one
【单选题】John ______ leave for New York tomorrow, but I’m not sure.
A.
must
B.
may
C.
could
D.
need
【简答题】我国现行的汽车维护制度是《 1 》,《 2 》,《 3 》,《 4 》。
【单选题】Please make a list of ______ the celebration will need for the coming New Year and I’ll do the shopping.
A.
what
B.
which
C.
when
D.
where
【简答题】我国现行的汽车维护制度是_________,___________,___________,____________.
【单选题】—Mum, I need a new schoolbag. ----But didn’t I buy you ___ three months ago?
A.
it
B.
that
C.
one
D.
another
【单选题】Why did I need a new dress?
A.
I wanted to change my old dress.
B.
I was going to send it to my friend as a birthday gift.
C.
I was going to attend a birthday party.
D.
I wanted to look better in my working place.
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