问题详情:
At the concert the singers will ________ everyone to protect the environment.
A.call up B.call for
C.call off D.call on
【回答】
D
知识点:动词
题型:选择题
问题详情:
At the concert the singers will ________ everyone to protect the environment.
A.call up B.call for
C.call off D.call on
【回答】
D
知识点:动词
题型:选择题