.When the American constitution ______into effect in ,it didn’t contain any words guaranteeing the basic rights of ordinary citizens.A went B. had gone C. has gone D. was going
The year 2007 ______ remarkable changes in Changzhou’s landscape.
The children were catching butterflies in the garden. Some caught a lot, and others caught _______ at all.
How wonderful to go away for a month, _____ all worries and responsibilities!
Health officials have tried to raise _______ about the H1N1 flu among all people.
In front of our house ________ we used to swim.