The lively boy suddenly appeared to be ________ quiet, so his mother knew something unusual must have happened.
The plan ________encourage the employees to improve their work turned out to be a success.
—How often do you go out for supper? —________,once a week. A.Have no idea B.It depends C.As usual D.Generally speaking
He’d _________a volleyball court on the beach with stick.
George Washington was born in 1732 in a rich family in _______ is now the state of Virginia.
The scientists are able to ________ accurately when the spaceship will reach the moon.