He is good at English, ______we all know. 
#73808
A
that
B
as
C
whom
D
what
推荐题目
We will fly a kite if your homework _______ before 3 o’clock.
#41335
A
finishes
B
will be finished
C
has finished
D
is finished
Give this book to   you think needs it.
#71653
A
who
B
whoever
C
whomever
D
whatever
You can never imagine _______difficulty we had _______the cupboard upstairs.
#69884
A
what a; to carry
B
how; to carry
C
what; carrying
D
how; in carrying