Knowledgeable as he is, the expert was unwilling to offer advice to ______ he thought was not qualified.
#79025
A
whoever
B
who
C
whom
D
which
推荐题目
 ---What did your granddaughter say just now?--- She wondered ___________.
#36883
A
what time was it
B
whether the book was written by Mark Twain
C
how could she use the MP4
D
when she will have a final test
In this institute, a medal with nine thousand dollars __________ gains success in science and technology every other year.
#78921
A
is given to whoever
B
are given to anyone who
C
is given to whomever
D
are given to everyone
The children in poor areas can’t afford their education. We should think ________ to help them. 
#37979
A
what can we do
B
what we can do
C
how can we do
D
how we can do
--- What’s your question? ---I want to know _________.
#37959
A
how can trees help us
B
how do trees help us
C
how trees help us
D
how can we help trees