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单选 1.Professor Wang is giving a lecture on__phyics.A.a B.an

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单选 1.Professor Wang is giving a lecture on__phyics.A.a B.an C.the D./
2.What_pity that he has missed the change!
A.the B.a C.an D./
3.I will try to_who stole my wallet.
A.look for B.look up C.find Dfind out
4.Look,the whole room is covered__dirt.
A.by B.for C.with D.at
单选 1.Professor Wang is giving a lecture on__phyics.A.a B.an
D a lecture on…… 一堂物理课,不用加冠词
B 感叹句 what a pity 多么遗憾
D find out找出来
C
be covered with 覆盖着.(强调状态)
be covered by 覆盖着.(强调动作)
再问: What__your room is! A.dity B.a mass C.mess D.messy John was elected__chairmn of __students`union A.a;a B.a;the C.the;the D./;the
再答: 1.应该是 a mess。B what a mess your room is 2. D 不懂的话我给你解释