In order not to be disturbed, he spent two hours ____ in his study.
#89452
A
locking
B
to lock
C
locked
D
being locked
推荐题目
It is typical of students to stay up ________ deep into the night for the final exam.
#89575
A
to read
B
having read
C
to have read
D
reading
The boy wanted to ride his bicycle in the street, but his mother told him ______.
#98789
A
not to
B
not to do
C
not do it
D
do not to
A hearty laugh relieves physical tension, ________ your muscles relaxed for over half an hour.
#88798
A
to leave
B
left
C
leaving
D
leave
Air pollution, together with littering, ____ many problems in our large industrial cities today.
#96011
A
causes
B
cause
C
caused
D
causing
The old man didn’t know whether to sell the car or____ .
#97535
A
being kept for later use
B
kept for later use
C
to keep it for later use
D
to be kept it for later use