Population growth rates vary among regions and even among countries within the same region.
vary = làm cho biến đổi
A. kiềm chế
B. không thay đổi
C. vẫn không ổn định
D. biến động
Regular exercise and good diet will bring______fitness and health.
The packages___________________ so that it would be easier to carry them.
The phrase "keeps sellers on their toes" in the passage mostly means "______".
We must push the piano to the corner of the hall to_____________________ our party tonight.
There has been a great increase in retail sales,_____________________ ?
______ his brother, Mike is active and friendly.
She asked me______I was looking at.
Long ago, women were_________to vote in political elections.
As a millionaire who liked to show off her wealth, Mrs. Smith paid______________________________________________ we asked.
The Lake District,____________________ was made a national park in 1951, attracts a large number of tourists every year.