题目

I have trouble _________ the work without help .A. finish B. to finish C. finished D. finishing 答案：【答案】D【解析】句意：没有帮助我完成这项工作有困难。根据have trouble（ in） doing 做某事有麻烦/困难，故选D。I’m sick of ________net bars.It’s too noisy there.A.dropping atB.dropping in atC.dropping inD.dropping on