His roommate is not very clever student, but he certainly works very hard indeed

Hurry! We're got to leave the house immediately. Otherwise, __________ the opening ceremony. 

“I’m sorry you failed the test.” “Frankly, I wish I ____ harder.” 

Sue works as .................. teacher in ...................school for .................. blind in Ireland. ........school has over a thousandpupils. 

Choose the correct answer to complete the sentence. "These companies were accused of having released a ____ amount of carbon dioxide into the atmosphere."

The amount of books in the Library of Congress is more than 58 million volumes

Agronomists study crop disease, selective breeding, crop rotation, and climatic factors, as well soil content and erosion.

Unlike wood, paper, and fabric which tendency to disintegrate after being buried for many years, ceramics and glassware although easily broken, survive well in the ground.

Archeological studies have provided evidence that the use of plants for decoration as well as for food developed early in the history.

“Gone With the Wind”, the epic novel about life in South during the Civil War period, took ten years write.

You don't love me anymore, _    ?

Choose the correct answer to complete the sentence. "Such unhygienic conditions encourage the spread _____ diseases."

I miss my old motorbike, I wish I ____ it. I had it for years. 

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

Public health experts say the money one spends avoiding illness is less than the cost to be sick

Every city in the United States has traffic problems because the amount of cars on American streets and highways is increasing every year

Both a term paper and a final exam is often required for a college class.

If I had known that you couldn’t eat eel, I ____ bought it. 

None two butterflies have exactly the same design on their wings.

Tom didn’t believe in us, and it took along time to convince him.

She thinks they will come, _    ?