Jabir ibn Hayyan did his research in a laboratory in Iraq.

The country ..................................................................... .

It is not normal for me to wear glasses yet, so I’m still having difficulty.

I .............................................................................................

"Why does the sky sometimes look red?"

Do you mind explaining .......................................... 

People have been using smartphones since they .......... in the early 2000s.

The aim of this report is to discuss the advantages of the project. This sentence

represents.....

Don’t talk to the drivers. They must............

In your opinion, it is ...................to start revising at dawn.

Symptoms ............... according to the type and location of the ailment.

Regular ............. is beneficial for children, it helps them to have a protection against

many illnesses and diseases.

If he............the first prize, his mother will be happy.

They say that women live longer than men.

Women ........................................................

There’s less information on the website than there is in the book.

There isn't as ............................................................................

We won’t be home tomorrow night. We .................. the football match at the stadium.

The friends ....................... to a restaurant every Saturday.

By the time my friend phoned me, I ................... for three hours.