Lucy spent three years _______ Chinese before she came to China.
#60160
A
on learning
B
to learn
C
learning
D
Learn
推荐题目
 Do you need more people _______ you _______ the vegetables?
#58120
A
help, water
B
to help, water
C
help, watered
D
to help, watering
I hope ______a writer one day. 
#58070
A
become
B
to become
C
becoming
D
becomes
Could you       me your bike ?  Mine is broken .
#59263
A
borrow
B
lend
C
giving
D
return