The lively boy suddenly appeared to be ________ quiet, so his mother knew something unusual must have happened.
#23616
A
casually
B
consequently
C
curiously
D
constantly
推荐题目
I have got _____ work to do on a ______ cold day.         
#24017
A
much too, too much
B
too much, too much
C
too much, much too
D
much too, much too
All passengers _______, please fasten your seat belts and remain seated _______ the plane is landing.
#22186
A
on board; until
B
abroad; since
C
on the board; before
D
aboard; when