Giúp mình với! ,a. Fill in the blanks using the Present Perfect.,,1. Their scientists _ have discovered___ (discover) new things about how the brain works.,2. The charity _____ (raise) lots of money for sick children.,3. We _____ (organize) many similar events to raise people's awareness of the dangers of plastic pollution.,4. They _____ (support) women in setting up businesses since 1995.,5. It _____ (give) job training to disabled people for 55 years.,6. The company _____ (donate) money to these charities since 2002.,b. Underline the mistakes in the sentences, then write the correct sentences on the lines.,,1. It has helped people in developing countries since 50 years.,It has helped people in developing countries for 50 years.,2. It has helped people get jobs for 2001.,3. Their volunteers has helped run the homeless shelter since 1989.,4. Their scientists have discover many important medicines.,5. It have hired scientists from all over the world to work at its research center.

Question

Giúp mình với!

,a. Fill in the blanks using the Present Perfect.,

,1. Their scientists _ have discovered___ (discover) new things about how the brain works.,2. The charity _____ (raise) lots of money for sick children.,3. We _____ (organize) many similar events to raise people's awareness of the dangers of plastic pollution.,4. They _____ (support) women in setting up businesses since 1995.,5. It _____ (give) job training to disabled people for 55 years.,6. The company _____ (donate) money to these charities since 2002.,b. Underline the mistakes in the sentences, then write the correct sentences on the lines.,

,1. It has helped people in developing countries since 50 years.,It has helped people in developing countries for 50 years.,2. It has helped people get jobs for 2001.,3. Their volunteers has helped run the homeless shelter since 1989.,4. Their scientists have discover many important medicines.,5. It have hired scientists from all over the world to work at its research center.

Accepted Answer

a. Fill in the blanks using the Present Perfect.

Their scientists have discovered (discover) new things about how the brain works.
The charity has raised (raise) lots of money for sick children.
We have organized (organize) many similar events to raise people's awareness of the dangers of plastic pollution.
They have supported (support) women in setting up businesses since 1995.
It has given (give) job training to disabled people for 55 years.
The company has donated (donate) money to these charities since 2002.
b. Underline the mistakes in the sentences, then write the correct sentences on the lines.

It has helped people in developing countries since 50 years.
It has helped people in developing countries for 50 years.

It has helped people get jobs for 2001.
It has helped people get jobs since 2001.

Their volunteers has helped run the homeless shelter since 1989.
Their volunteers have helped run the homeless shelter since 1989.

Their scientists have discover many important medicines.
Their scientists have discovered many important medicines.

It have hired scientists from all over the world to work at its research center.
It has hired scientists from all over the world to work at its research center.