Lookattheground,itiswet.It
问题详情：
Look at the ground, it is wet. It ________ last night.
A. must have rained B. must rain C. could have rained D. should have rained
【回答】
A
知识点：虚拟语气与情态动词
题型：选择题
问题详情：
Look at the ground, it is wet. It ________ last night.
A. must have rained B. must rain C. could have rained D. should have rained
【回答】
A
知识点：虚拟语气与情态动词
题型：选择题
