Language Focus

Jim: "We waste a lot of money and time researching and making robots."

Emma: " ___________."

1. I think not
2. I agree with
3. I don't think so
4. I don't hope so

The bus didn’t stop _________ it was full of passengers.

1. since 
2. but 
3. and
4. so

Robots will be very useful for our lives but they use _________ energy.

1. some
2. a little
3. very
4. too much

If she ________ the airport, I’ll let you know.

1. arrives 
2. arrive
3. will arrive 
4. arrived

The air is polluted __________ the factories produce a lot of smoke.

1. and 
2. since  
3. but
4. however