The vice-president is going to __________ the president at tonight’s fundraiser, as the president is out of the country. 

The President declared that time was ______ in the search for peace.

Identify the one underlined word or phrase A, B, C or D that must be changed for the sentence to be correct: 

Canoeing is the activity of paddling a canoe for the purpose of recreation,sport, or transport.

Thanks to lifelong learning, people's level of awareness  ............   significantly.

 If we meet at 9:30, we _________ plenty of time. 

During one of his sea voyages, the Italian navigator Alvise Cadamcsto __________ the Cape Verde Islands. 

If it hadn't been for his carelessness, he _    the exams.

Identify the error in each sentence: 

Only after food has been dried or canned that it should be stored for later consumption

Lan asked that we ________her graduation ceremony next week.

We need ________ information about this English course.

Hoang  ............  his email four times a week in order not to miss anything important.

Identify the one underlined word or phrase that must be changed in order for the sentence to be correct.

You paid 30 euro for that jacket? That was a real ........

The United States _    one of the strongest countries in the world.

The relative size of an insect's wing is much greater than  ...............

We need __________information before we can decide. 

Thuy Duong appreciated ..............  for her excellent study results.

Having read this book, _    

It seems that you have to cope with the stresses and strains of the job,  ...............   ?

________ taking an extra courses next emester? It's essential.

I would have visited you if I ............... busy with my homework.

Despite _    a headache, John tried to finish the test.