The retired professor, _____ in his new book in the past three years, hasn’t realized the decline in his health.
#12131
A
involved
B
being involved
C
having involved
D
to be involved
推荐题目
The successful launch of Tiangong1 symbolizes a further step for China to join in the________of space stations previously mastered by Russia and the US.
#11924
A
invention
B
production
C
operation
D
preparation
It has been reported that some government leaders ______ their authority and position to get illegal profits for themselves.
#13002
A
overlook
B
employ
C
abandon
D
abuse
After the new technique was introduced, the factory produced _______ cars in 2009 as 10 year before.
#14236
A
as twice as many
B
as many twice
C
twice more as
D
twice as many
Hiking by oneself can be fun and good for health.It may also be good for ________ building.
#11187
A
respect
B
friendship
C
reputation
D
character