-- Is air the lightest thing in the world?-- Not . Scientists from Zhejiang University have just developed the world’s lightest material.
#35412
A
now
B
yet
C
then
D
again
推荐题目
Mary doesn’t like blue, so her mother ____ buys blue clothes for her.
#35450
A
always
B
usually
C
often
D
never
——How often do you go skating?——________.I can’t skate at all.
#34900
A
Always
B
Sometimes
C
Seldom
D
Never
I enjoy my new life here. But I still miss my old friends from time to time. Here the underlined part means .
#35073
A
sometimes
B
at all times
C
always
D
Usually
— ________ have you become so good at English this term ?—By studying grammar and reading English novels.
#35881
A
When
B
What
C
How
D
Who