Mr Smith told his sons ____ football in the street.

The magazine you lent me ______ among the 10 most popular ones in our school.

Experiments of this kind ________ in both the U.S. and Europe long before the Second World War.

Iraq ________ too many wars since 1990, making his people ________ a lot.

I don’t know if ______ tomorrow. If it ______， I will stay at home and watch TV.