Which do you enjoy ____ your spare time, surfing the Internet or building up your strength?
#95565
A
to spend
B
spend
C
spending
D
to spending
推荐题目
I sat until after eleven,______in a book.
#98147
A
absorbing
B
having absorbed
C
absorbed
D
having been absorbing
The teacher came into the classroom _______ by his students. 
#97444
A
following
B
to be following
C
followed
D
having followed.