If my new company is successful, I __ employ people to help me
1. Will
2. Be able to
3. Will can
4. Would

2) you __ wear a suit to work, but you can if you want
1. Must
2. Mustn't
3.could
4. Don't have to

3) Cecilia knows someone __ went to the carnival in Rio de Janeiro
1. Who
2. Which
3. She
4. Where