She smiled happily,________ a set of amazing white teeth to us.
#90825
A
exposing
B
being exposed
C
exposed
D
to expose
推荐题目
He told her ______ there at once.
#97500
A
get
B
gets
C
should get
D
to get
Rather than _______ on a crowded bus, he always prefers _______ a bicycle. 
#98782
A
ride;ride
B
riding;ride
C
ride;to ride
D
to ride;riding
Then came a terrible thunder ________ the sudden lightning.
#94359
A
followed
B
followed by
C
following
D
following by