She is very jealous ......... her sister.

I’ll be at home ........... Friday morning. You can phone me then.

We benefit greatly ____________the medicines and other products that biodiversity provides.

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

There's nothing .......... exercises for making you warm.

How would the mind deal _____________ the psychological tension?

Boys! Put your toys ............ It is time to go to bed. Don't stay ............. late.

.............. of the concert, there was great applause.

She'll come home ______ April.

Contrary ......... what most people used to believed, these minerals are not renewable.

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

I’m going away .......... the end of February.

The initiative for founding the Red Cross came _____ a Swiss man called Jean Henri Dunant.

He is __________ a lot of study pressure to win a place at university.

I’m not interested ____________ politics.

The computer isn’t working. It broke____________ this morning.

What have you got ......... your mouth?

Ken was proud ______________ his good marks on the English.

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

Do you believe _______ ghosts?

He put the book .......... the table and sat down .......... a chair.