.Your son has kept _________ for two hours. You’d better ask him to have a rest.
#51260
A
study
B
studied
C
to study
D
studying
推荐题目
When you read English,_____ translate every word into Chinese.
#50012
A
try not to
B
try to
C
don’t try
D
not try
 My sister spends too much time ______computer games.
#48699
A
to play
B
play
C
plays
D
playing
When the teacher came in, he saw some boys _______ behind Daniel, _______ the computer games. 
#50360
A
sit, watching
B
sitting, watching
C
sit, to watch
D
sitting, watched
They enjoyed_____ storybooks very much last year.
#49907
A
to read
B
read
C
reading
D
do reading
— The social worker spent nearly two hours __________ the plan. He said he would discuss with you about it these two days.— Really? __________ is fine.
#48833
A
to look through; Some time
B
to look for; Any time
C
looking at; Some time
D
looking through; Any time