问题详情:
Having checked everything, he sat down to do his homework, __________ he heard a lightening strike the electricity pole in the backyard.
A.for B.when C.or D.but
【回答】
B
知识点:连词
题型:选择题
问题详情:
Having checked everything, he sat down to do his homework, __________ he heard a lightening strike the electricity pole in the backyard.
A.for B.when C.or D.but
【回答】
B
知识点:连词
题型:选择题