Long ago, man used to ______ with his hands but now man is used to ______ with machines, and sometimes a robot is used to ___ instead of people.
#93755
A
work, working, work
B
work, working, working
C
working, work, working
D
working, work, work
推荐题目
—Please go on with your demonstration.—But where was I?—Well, you_____the two chemicals together.
#95249
A
tried to mix
B
were trying to mix
C
were trying mixed
D
had tried to mix
Here are some of the suggestions you need __________your hair.
#90594
A
taking care of
B
to be taken of
C
to take care of
D
take care of
Witches(巫婆)are said to _______ magical powers to communicate with gods who are ______ of everything on the earth. 
#97014
A
possess; in possession
B
own; in the possession
C
have; in the possession
D
be; in possession