--- What is our head teacher like, do you know? --Oh, he is very kind, ________ he looks very serious.
#55617
A
because
B
though
C
if
D
when
推荐题目
______ Kathy was watching TV, her mother asked her to go shopping.
#56706
A
Before
B
Until
C
While
D
After
Help others whenever you can you’ll make the world a nicer place to live.
#55388
A
and
B
but
C
or
D
unless
