If the babysitter cannot come tomorrow,do you mind________alone at home,doing his homework?
_______ a report, some 844 animals and plants have disappeared in the last 500 years.
Chinese medicine has amazed many people around the world with its different________ to health.
It is strongly ______ that the machines should be checked every year.
--Can I help you with the heavy bag? --______.
That tree, _______ branches are almost bare, is very old.