_____ back problems， always bend your knees when you lift heavy objects.
#98752
A
Avoiding
B
To avoid
C
Having avoided
D
To be avoiding
推荐题目
China’s first aircraft carrier, ____ as long as 304 metres, was handed over to the People’s Liberation Army navy in 2012.
#90866
A
measures
B
measured
C
to measure
D
measuring
Does your new secretary ____ short hand?
#97549
A
know to take
B
know how to take
C
know how take
D
know how taking
Jane was a very smart young girl, so she was quite used to her friends _______ their admiration for her.
#96563
A
showed
B
show
C
showing
D
to show
The club, _____ 25 years ago, is holding a party for past and present members.
#89411
A
founding
B
founded
C
being found
D
to have found