Professor Jordon is well known for his _____ into the habits of the common housefly.
#6923
A
examination
B
introduction
C
research
D
expression
推荐题目
They were trying to remove harmful ______ from cigarettes.
#6937
A
content
B
substances
C
materials
D
mixtures
My grandma’s after-supper ______ includes: walking the dog in the neighborhood and dancing in the park with many other aged women.
#5384
A
regulation
B
training
C
routine
D
program
Selig formally announced on Thursday his intention to retire in January 2015. “It remains my great______to serve the game I have loved throughout my life.” he said.
#5122
A
contribution
B
pattern
C
competition
D
privilege
Being able to speak another language fluently is a great when you are looking for a job.
#7167
A
advantage
B
chance
C
assistant
D
importance
We look forward to the day when the motorcar has been replaced by some less dangerous ____ of transport.
#7295
A
methods
B
means
C
manners
D
ways