It takes time to build ______ when you are learning a difficult skill.
#5268
A
confidence
B
strength
C
energy
D
belief
推荐题目
China Daily gave us a vivid ________ of the successful ___________of Chang’er II. 
#5566
A
account; launch
B
explanation; start
C
description; send
D
imagination; boost
A _____ carries all kinds of things , but no passengers.
#6474
A
goods’ train
B
goods train
C
good’s train
D
good train