几道英语选择

题目

几道英语选择
Were filming by the lake____we saw a small boat coming towards us
a since b after c when d before
Mum ,l can't bear the pain
lt won't be long ___the doctor comes
a while b before c since d as
Everyone should remain ___until the film finishes
a seat b seating c to seat d seated
He doesn't smoke now ,but he was a heavy smoker __he had a lung cancer
a as b since c until d after

答案

c b d c