4. None of the shoes in the shops are the right size. They are _____ too big ______ too small.
A. both; andB. neither; norC. either; or
D. not only; but also
5. I’d like to go shopping with you, _____ I’m too busy today.A. butB. andC. soD. or
6. Tony is a clever boy, _____ he usually fails in Chinese exams.A. soB. butC. or
D. because
7. I’m different from my twin sister. I love dancing, _____ she is interested in reading.A. soB. orC. butD. and
