Of the two brothers, Bill is ____ younger one, and he is a quiet boy, _____ that most adults like very much.
----Why does the lake smell terrible?-----Because large quantities of water_______.
The world economic crisis _______ in 2008, but the global economy began to recover in the second half of 2009.
-You won’t go to Mary’s birthday party, will you?-Yes, _______I’m invited.
It is hoped that the president’s visit will_______a better understanding between the two countries.
.Influenza H1N1 is an illness that can result in death unless left_______in time.