题目
单选题(1.0分)15.-Who is on duty today? -It's me. What's up?--Look. The blackboard needs __ right now.A. cleanedB. cleaningC. cleanD. to clean
单选题(1.0分)15.-Who is on duty today? -It's me. What's up?--Look. The blackboard needs __ right now.
A. cleaned
B. cleaning
C. clean
D. to clean
题目解答
答案
B. cleaning