---Where did you find your wallet? --- It was in the shop _______ I bought my iPad Air.
Eating too much fat can______ heart disease and cause high blood pressure.
Teenagers are damaging their health because they often ______ themselves to so many electric products.
Born into a family with three brothers, David was to value the sense of sharing.
—Shall I inform him of the change of the schedule right now? —I am afraid you , in case he comes late for the meeting.
Tsinghua University, in 1911, is home to a great number of outstanding figures.