A model or an experiment in a science class can help us see things which would       remain hidden.
#22676
A
therefore
B
yet
C
otherwise
D
still
推荐题目
Nobody could believe what Chloe says because she is ______ changing her mind.
#24854
A
regularly
B
steadily
C
suddenly
D
constantly
My boss hates interruptions,       when he is trying to work.
#23575
A
occasionally
B
generally
C
specially
D
especially
 The higher the birds flew, _______ we could see them.
#24610
A
less clearly
B
the less clearly
C
more clear
D
more clearly