Computers must be of great use to ________ doing the scientific research. 
#16786
A
these
B
whoever
C
those
D
whomever
推荐题目
He thinks himself somebody, but we think him __________.
#56478
A
nobody
B
anybody
C
somebody
D
everybody
The top detective asked the witness if he had seen _______ at about 10 p.m.____.
#57324
A
something unusual , last night
B
unusual something , the night before
C
anything unusual, last night
D
anything unusual , the night before