Most of the people in the group felt rather disappointed at their travelling abroad.They say that it _______better organized.
A. might have been
B. had been
C. had to be
D. must have been
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在中华人民共和国境内从事药品的 ______、______、_______、_______和监督管理的单位或个人,必须遵守《中华人民共和国药品管理法》
原生动物种类增加,且数目增多,说明污泥已经成熟(),出水水质好
代数式√9-x有意义时,实数x的取值范围是 __________.
"Doesn't Elanine want to see that movie?" "Yes,but she says_______go tonight."
A. she'd rather not
B. she had rather not
C. she won't rather
D. she'd rather not B)she had rather not C)she won't rather D)she'd not rather