Professor Smith, along with his assistants, ________ on the project day and nigh

题干

Professor Smith, along with his assistants, ________ on the project day and night to meet the deadline.

A．work

B．working

C．are working

D．is working

上一题下一题 0.64难度单项选择更新时间:2010-12-23 03:49:19

小学学科试题库

初中学科试题库

高中学科试题库