The hotel will be in a tight comer this year unless the newly launched project ______ miracle.
A. is working
B. works
C. will be working
D. worked
Jane has ______ smile.
A. such a friendly
B. a such friendly
C. friend
D. such friendly
催化真核生物转录生成mRNA的聚合酶是
A. 内含子
B. 多顺反子
C. RNA聚合酶Ⅱ
D. 原核RNA聚合酶口
E. 多聚A聚合酶
What he will do is ______ a work contract with the company.
A. do
B. make
C. let
D. show
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