people visit the museum  every day.
#51185
A
Million of
B
3 million
C
3 millions
D
3 millions of
推荐题目
Our planet is about ______ years old.
#51853
A
35,000
B
4600
C
4600 million
D
500 million
More than twenty_____students are having an important exam at the moment.
#51671
A
thousands
B
thousands of
C
thousand
D
thousand of
There will be a _______bridge over the river.
#51824
A
2,000-metre-long
B
2,000-metres-long
C
2,000 metres long
D
2,000 metre long