27) The construction of the laboratory ____by the end of next month.A) must be completed B) must have been completedC) will be completing D) will have been completing
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![27) The construction of the laboratory ____by the end of next month.A) must be completed B) must have been completedC) will be completing D) will have been completing](/uploads/image/z/14799156-60-6.jpg?t=27%29+The+construction+of+the+laboratory+____by+the+end+of+next+month.A%29+must+be+completed+B%29+must+have+been+completedC%29+will+be+completing+D%29+will+have+been+completing)
27) The construction of the laboratory ____by the end of next month.A) must be completed B) must have been completedC) will be completing D) will have been completing
27) The construction of the laboratory ____by the end of next month.
A) must be completed
B) must have been completed
C) will be completing
D) will have been completing
27) The construction of the laboratory ____by the end of next month.A) must be completed B) must have been completedC) will be completing D) will have been completing
The construction of the laboratory _B___by the end of next month.
A) must be completed
B) must have been completed
C) will be completing
D) will have been completing
----"by end of +将来时间",动词用“将来完成时”,又由于The construction of the laboratory(实验室的建设)不会自己完成,应用被动语态,所以排除D,只能选完成时被动语态的B.
因为是next month所以排除b
cd选项没有被动含义,排除
故选a
B 那个时候肯定已经建好了
选B
很明显!选B 将来完成时 又是被动语态。因为完成的东西是在说话的将来,并且是完成状态!故 因选者B!