Many vegetables, including tomatoes, and corn, are native ______ the New World.

I'm very grateful .......... her ......... help.

He is negligent .......... his duties.

He was put .......... prison.

He’s getting bored_____________ learning_____________ heart.

We are looking forward ....... seeing you again.

She was very surprised________ the grade she received.

They came to visit us _____ my birthday.

He read that .......... a book.

Don't put ____ until tomorrow what you can do today.

Are you worried _____ the final examination?

Governments have enacted laws to protect wildlife ________commercial trade and overhunting.

China became the third country in the world to be able to independently carry __________ manned space flights.

The bus was late this morning but it’s usually .............

Pay attention _______all traffic signs when you are travelling in the street.

She gave some advice .......... her brother.

This variety of seed is inferior ______ the type I planted last year.

Thank you very much _____ what you have done for me.

I shall meet you _____ the corner _____ the street.

She has been living in the country________ the beginning of the summer.

She treated me .......... Cake, ice-cream and tea.