Choose the proper words and fill in the blanks

After much ________ (calculate, calculation), they decide to go to Hainan by plane.

Choose the proper words and fill in the blanks.

He is studying ________ (Greece, Greek) history these days.

Fill in the blanks with tine given words in their proper forms.

Did you buy the book last month? Yes, I ________ it at Hongkou bookshop. (bought, brought)

Fill in the blanks with tine given words in their proper forms.

Miss Li is going to collect the children's ________ tomorrow. (diary, diaries)

Fill in the blanks with tine given words in their proper forms.

These shops ________ different kinds of furniture. (sell, sale)

Fill in the blanks with tine given words in their proper forms.

After much ________, they decided to build a new school building. (discussion, discuss)

Fill in the blanks with tine given words in their proper forms.

Physics is too difficult for me. I always ________ in the exams. (failure, fail)

Choose the proper words and fill in the blanks.

The little boy wants to be a great________(science, scientist) when he grows up.

Choose the proper words and fill in the blanks.

People ran out of the hall ________ (noisy, noisily).

Choose the proper words and fill in the blanks.

The chief ________ (robbed, robber) the old lady of her purse yesterday.