In order not to be disturbed, I spent three hours _______ in my study. 
#90643
A
locking
B
locked
C
to lock
D
to be locked
推荐题目
He often takes this road to avoid ______ the troublesome boy.
#93323
A
to meet
B
meeting
C
to meeting
D
to have met
.____on his novel, the author decided to adapt it into a play.
#96794
A
Basing
B
Based
C
To base
D
Being based
Will those ____the children from abroad come to the headmaster’s office?
#97574
A
teaching
B
teach
C
who teaches
D
who teaching