study is hard work, we’d better continue to the end.
#57655
A
Though
B
Unless
C
Because
D
If
推荐题目
They were ________ busy ________ with each other ________ the time.
#55658
A
too; talking; to forget
B
so; talking; that they forgot
C
so; to talk; that they forgot
D
too; to talk; to forget
My father feels ________ because he heard from ________ today. 
#58571
A
happy;an old friend of he
B
happy;an old friend of his
C
happily;one of his old friends
D
happily;an old friend of him