1. Good news! We'll have one-day holiday. Let's go on a spring outing.
A. a B. an C. the D./
2. 一What do you think of the science exam?
一Very difficult! We all find the most difficult one we have ever taken.
A. this B. that C. it D./
3. He has made great progress his mother is very pleased with him.
A. so; that B. enough; to C. so; too D. such; that
