28.The largest collection ever found in England was one of about 200,000 silver coins, _____ over 600 years old.
When deeply absorbed in work, ___he often was, he would forget all about eating or sleeping.
He missed ___ gold in the high jump, but will get ___ second chance in the long jump.
Jim managed to get into his house without the key. ___?
—You have a beautiful garden. May I have a look around it? —I’m glad you like it.Go ahead if ___.
Some of you have finished Book One. ___, you can go on with Book Two.