By studying the fossils pollen, which extremely resistant to decay, researchers can gain useful information about vegetation of the past

This will have serious effect about agriculture.

Interestingly, the United States both produces or uses more crude oil than any other national

It was him who came running into the classroom with the news

My father doesn’t know speak Korean

The pilot along with his passengers … rescued last night. 

John announced that he could not longer tolerate the conditions of  the contract of which he was working

A 1971 U.S government policy not only put warnings on cigarette but also ban television advertising of cigarettes.

Of all outdoor activities, Paul likes fishing best of all, but he doesn’t enjoy cleaning the fishing afterwards

You have study hard to keep pace in your classmates.

Find mistakes and correct

It is becoming extremely difficult to grow enough to feed world’s rapidly increased population.

Last night, when I was reading, I heard door to open and saw the shadow move across floo

First raise your right hand, and then , you should repeat after me .

A lot of people stop smoking because they are afraid their health will affect and early death

Friends advise her to stop  doing the housework because her old age.

The modern American dictionary is typically a single compact volume published with modest price.

Forgetting something usually mean an inability retrieve the material that is still stored somewhere the memory.

Ocean currents that help transfer heat from the equator to the poles, thereby creating more balanced global environment.

Some of plants in this store require very less care, but this one needs more sunlight than those

Choose the best option:

Banh chung ____ on the altar to worship during Tet.

Listening to music on tape or even disk is not nearly as good as to go a live concert.