It was difficult for the rich _____ a happy life.
#48476
A
to have
B
having
C
had
D
have
推荐题目
I often help my mother _______ clothes.
#50777
A
wash
B
washing
C
washes
D
washed
Did you finish _____your homework last night? 
#49966
A
do
B
does
C
doing
D
done
She’ll spend as much time as she can      to improve her spoken English. 
#48523
A
speak English
B
to speak English
C
speaking English
D
speaks English