【2015·陕西】Back from his two-year medical service in Africa, Dr.Lee was very happy to see his mother______ good care of at home.
We are looking __________ for a house in this area.
Theclock __________ ten when he woke up.
Thisis my dear teacher without __________help Icouldn't have passed that difficult exam.
We were playing in the field when we __________ sight of a beautiful bird we had never seen before.
— I can pass the College Entrance Exam. — __________ you look so relaxed these days.