An early typewriter produced letters quickly and neatly; the typist, _____ couldn't see his work on his machine.
#4494
A
however
B
therefore
C
yet
D
although
推荐题目
With modern equipment，many mysteries have ____ to light in recent years.
#4459
A
brought
B
come
C
thrown
D
appeared
The doctor is skilled at treating heart trouble and never accepts any gift from his patients, so he has a very good ______
#4432
A
expectation
B
reputation
C
contribution
D
civilization
You should correct all the mistakes as soon as possible before the book _____.
#4414
A
goes out
B
puts out
C
sets out
D
comes out
An early typewriter produced letters quickly and neatly; the typist, _____ couldn't see his work on his machine.
#4494
A
however
B
therefore
C
yet
D
although
In the past ,the miners had to be extremely to bear the uncomfortable conditions at mines.
#4464
A
difficult
B
rough
C
tough
D
brave