Only _______ as an interpreter _______ how important it is to grasp English.
A. when did I work; I realized
B. when I worked; I realized
C. when did I work; did I realize
D. when I worked; did I realize
_______ that they may eventually reduce the amount of labor needed on construction sites by 90 percent.
A. Such construction robots are clever
B. So clever the construction robots are
C. So clever are the construction robots
D. Such clever construction robots are
Mr. White promised to help me and _______ the next day.
A. neither he did B. so he did
C. neither did he D. so did he
There is plenty of rain in the southeast, there is little in the northwest.
A. because B. therefore
C. while D. as
Don't leave the water while you brush your teeth.
A. run B. running
C. being run D. to run
We arrive at six. But I'm sorry we are late.
A. should B. were supposed to
C. must D. ought to
