Adverb Clauses

Alice will tutor you in Math _____ you promise to show up promply every day.

• unless

• only if

• whereas

• even though

Oscar won't pass his math course _____ he gets a tutor.

• in case

• unless

• only if

• because

Most people you meet will be polite to you _____ you are polite to them.

• in case

• even though

• unless

• if

I'm glad that my mother made me take piano lessons when I was a child _____ I hated it at the time. Now, I enjoy playing the piano every day.

• even though

• because

• unless

• if

Chicken eggs will not hatch _____ they are kept at the proper temperature.

• because

• unless

• only if

• eventhough

John and Tom are twins, but they are very different. John never studies, while Tom _____.

• rarely studies

• sleeps all day

• is very studious

My roommate and I disagree about the room temperature. While she likes it warm, I _____.

• prefer cold temperatures

• have trouble when it is cool

• don't like my roommate

Athletes need to be strong, but they may need different physical characteristics for different sports. For example, weight lifters have well-developed chest muscles, while _____.

• basketball players' muscles are strong

• basketball players should be tall

• basketball players' chest muscles are very large

Portland, Maine, is on the East Coast of the United States, while Portland, Oregon, _____.

• is on the East Coast too

• lies on the West Coast

• is another medium-sized city

Crocodiles and alligators look a lot alike, but they have certain differences. While a crocodile has a very long, narrow, V-shaped snout, the alligator's snout is _____.

• wider and U-shaped

• long, narrow, and V-shaped

• large and green