.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 number of people invited _____ fifty, but a number of them ______ absent for different reasons.
He___ have attended the meeting this morning. He has been staying at my home for a whole day.
______ another button and your meal is prepared and heated for you.
Many teens don’t get enough sleep because they have ____ homework, ____makes them stay up at night.
—How about fried chicken? —Oh, it ___ lots of fat.