The price of electricity is going up _____ August.

It was a confusing situation. Many things were happening ......... the same time.

His father used the money he won to set_________ his own company.

Iraq is rich (on/at/to/in) oil.

He suffers .......... headaches.

That singer has become very popular (at/with/to/of) the youth.

No one knew precisely what would happen _____________ a human being in space.

Is the United States the wealthiest country ______ the world?

She was confused (with/on/about/in) the dates.

She saw a butterfly .......... the window.

She was sad because he was rude ... her.

He insisted ______ taking us dinner.

If you don’t pay attention_________ the teacher, you won’t understand the lesson.

I posted the letter today, so they should receive it .............Monday.

Someone left a box in the garden and I fell .......... it in the dark.

She wanted to borrow some books__________ him but she was shy ______________ asking.

This apartment would be too crowded for two people, but it is perfect ___ one.

In boxing it is a foul to hit .......... the belt.

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

Ken was proud ______________ his good marks on the English.

Family members who live apart try to get together ...... Tet.