When we write our homework on the computer, we should  _____ first.
#55940
A
save the document
B
print our homework
C
open a new document
D
turn off the computer
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 Which of the following is RIGHT? 
#55520
A
In the early 19th century, the first trains began to carry passenger.
B
Dinosaurs lived on Earth more than 60 millions years before human beings.
C
The king ordered his men to collect a bag of rice.
D
There are many tiny computers around us, and we dependent on them nearly every day.
______ it rained heavily, no one in our class was late for school.
#56854
A
Because
B
Even though
C
As soon as
D
Until
You will achieve nothing _       you work hard.
#56195
A
if
B
unless
C
when
D
That