在新制的Cu(OH)2中加入1,3-丙二醇，能得到绛蓝色溶液？
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A simple sentence always
A. starts with a capital letter, has a subject and action word or verb and ends in a punctuation mark.
B. have two independent clauses and at least one dependent clause.
C. ends in a noun
We discussed about winter break activities last week.
A. True
B. False
Today’s lesson is about
A. about winter break
B. winter holidays
C. successful people
A complex sentence has
A. One independent clause
B. At least one independent clause and one or more dependent clauses.
C. One independent clause and one or more dependent clauses
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