— Did Jack come back early last night?— Yes, It was not yet eight o'clock___________he arrived home.
—Have you heard that he was admitted into Beijing University?—Is that true? And I'm glad that his efforts at last ___.
With the rapid development of medical science, we ___ more new drugs used in the treatment of cancer.
The teacher wants his students to know more about modern science and tries hard to develop a(n) ___ about nature among his students.
In order to lose weight, the young lady prefers to ___ regularly rather than take expensive weight-losing pills.
—How do you think I should receive the reporter?—___ you feel about him, try to be polite.