You ’d better sing. It doesn’t ______ whether you can sing well or not.

Do you know the name of that _____ insect?

___ will Mr. Forbes be able to regain control of the company.

Last Friday I saw some boys ______ behind Daniel, _____ the computer games.

______ they are twin sisters, they don ’t look like each other.

Einstein won the Nobel Prize in 1921 and enjoyed great fame in Germany until the rise of Nazism ____ he was expelled from Germany because he was a Jew.

We will do our best to _____ shipment to meet your requirements in time. 

I don’t know ______ a show. Can you tell me?

The children should go to school instead of to support their families.

All of us know, color-blind people often find it difficult to __ between blue and green.