问题
Does your son ________an hour________ his homework every day after school—No, shorter than that now, about half an hour.
A:spend, do
B:spend, doing
C:spends, to do
D:spends, to do;
B:spend, doing
C:spends, to do
D:spends, to do;
正确答案是：
同类题型
______ he is determined to run a business, no one can persuade him to______.
Ben looks strong. Has he ever been sick— He’s a superman! He ________ goes to the doctor.
题文 The girl seemed too busy __________ her test _________ her mother enter the room.