from his two-year medical service in Africa, Dr. Lee was very happy to see his mother good care of at home.

8, Bank was elected _________president of the Royal Society, ________ position he held for 43 years.

My father returned at 10 o’clock ______ of June 15.

Many birds are out of ____________ now,because we have done a lot of things to protect __________ birds.

Have you finished the work -Not yet .I ______to do it just a moment ago