He has been in the USA        .
#51279
A
since a month
B
for a month
C
for a month ago
D
in a month
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This machine was used -------years ago.
#51793
A
five hundred
B
five hundreds
C
five hundreds of
D
five hundred of
_____ the fans are waiting for the popular singer outside the concert hall.
#51873
A
Two thousand
B
Thousands of
C
Two thousands of
D
Two thousand of
--Is that Mr. Green? ---No, Mr. Green is an ___________ man. But this man is only about _________.
#51812
A
80-year-old; 18 years old
B
80-years-old;18 years old
C
80-year-old;18-year-old
D
80 years old;18-year-old
     people come to visit the Great Wall every year.
#51612
A
Million of
B
Millions of
C
Million
D
Millions
We know that 80          of the cases of blindness can          .
#51508
A
per cents; cure
B
percent; cured
C
per cent; be cured
D
percent; are cured