150 câu trắc nghiệm Tìm lỗi sai nâng cao (P1)

There was a gradual raise in the number of literate males and females in the lowlands.

A beaver uses its strong front_teeth to cut down trees and peel_off its bark.

The big problem was that we really did not understand what was happened

Practicing his speaking English everyday, his hope was to get a good job in a foreign company.

The clerks who are happy to wait for their customer will get promoted soon.

It is difficult to write rules that tell exactly when we should apologize , and it is not difficult to learn how to do it 

The eastern bluebird is considered the most attractive bird native of North America by many bird-watchers.

The notion that students are not sufficiently involved in their education is one reason for the recently surge of support for undergraduate research

Not one in one hundred children exposed to the disease are likely to develop symptoms of it.

The office manager insists that his staff use all of their vacation time, but he hardly never takes a vacation himself.

The freshman failed to follow the advice of her senior that he studied hard and not go out too much. 

Parks which are found in downtown areas where office workers and store employees can enjoy their lunch hours sitting on the green grass in clean, fresh air. 

The guide told the tourists that it was a good restaurant specializing in seafood just round the corner from the museum. 

Doctors believe there is better in this modern world of ours to try to prevent illnesses than to rely on medicines to cure them. 

By the turn of the century, most of the inventions that were to bring in all the comforts of modern living has already been thought of. 

Mercury and alcohol are widely used in thermometers because their volume increases uniform with temperature.