Life is like riding a bicycle. ________ your balance, you must keep moving.
#88520
A
Keeping
B
To keep
C
Keep
D
Being kept
推荐题目
______ on ten years of observation and study, the theory shows that every one dreams every night, whether they realized it or not.
#90335
A
Basing
B
Based
C
Being based
D
Having based
In 2012 MoYan won the Nobel Prize for Literature, ___a host of imitators．
#91703
A
inspiring
B
inspired
C
having inspired
D
to inspire
I found him _________ in an armchair, ___________.
#97657
A
sit…and read
B
seated…reading
C
sitting…and read
D
seating…reading
l'm afraid that I can't attend Tom's wedding party_______next weekend.
#90988
A
to be held
B
being held
C
held
D
is to be held