Question

have you finished your homework mary

Mary,have you finished your English homework?No,in fact,I ___.
A.have just started B.just started C.am just starting D.have just been starting
We must learn to protect ourselves ,as you know,people usually transmit HIV __blood liquid or ___receiving infected blood transfusions.
A.by,by B.through ,by C.by ,through D.through,through

Answer 1

第一题 B 根据句意,玛丽你做完作业了吗?没,事实上,我刚刚从开始做,
从这个回答上可以分析出,后句应该用现在进行时.不要被问答时态一致所误导.
第2题 B transmit through 是固定搭配 通过.传播的意思,因为是receiving 并且根据句意想表达通过.方式故选择介词by
希望能够帮到你!