There is no      in trying to persuade him to change his mind, for he never follows the advice of others.
#5313
A
doubt
B
point
C
difficulty
D
wonder
推荐题目
 We have spent _____ money on English books.
#6895
A
a great deal of
B
a good many
C
a plenty of  
D
a number of
Please refer to the   before you switch on the engine.
#5486
A
introductions
B
explanations
C
instructions
D
expressions