We don’t think the experiment is ___ failure. At leastwe have gained ___ experience for future success.

Good news! We’ll have ________ one-day holiday. Let’s go on a spring outing.

The book was written in 1946, _______ the educationsystem has witnessed great changes.

________ makes the book so extraordinary is the creative imagination of the writer.

________ Tom________ Mary speaks good Chinese, so they can communicate with these Chinesestudents very well.