E10 U4 Lesson 2.2 Grammar

Their scientists _________________ (discover) new things about how the brain works.

The charity _________________ (raise) lots of money for sick children.

We _________________ (organize) many similar events to raise people's awareness of the dangers of plastic pollution.

They _________________ (support) women in setting up businesses since 1995.

It ______________(give) job training to disabled people for 55 years.

The company _________________ (donate) money to these charities since 2002.

It has helped people in developing countries _____ 50 years.

• since

• for

It has helped people get jobs _______ 2001.

• since

• for

Their volunteers have helped run the homeless shelter _____ 1989.

• since

• for

Their scientists have discovered many important medicines ______ years.

• since

• for