i could hardly open it为什么不在could与hardly中加to

It's too dark.I could hardly see anything .句中hardly能用hardly .I could hardly speak． it was so black that i could hardly see anything.这里为什么用was 和 So _____that we could hardly see it. i could hardly hear the actor i could hardly think clearly after 介词 副词 填空I could hardly wait to tell him the good news,but I I could hardly go up to a policeman and tell him that I had It was so dark in the cinema that I could hardly ______ my f It was so dark in the cinema that I could hardly ----- my fr it was so dark in the cinema that I could hardly pick out my it was so foggy last night I could hardly ___ out the lines