----Why didn’t you see me wave to you then ? ----Oh, If so. I must say sorry. I think I____ in the other direction.

He claimed _____my grandmother yesterday, but she passed away tens years ago.

—The battery in my cell phone is running low.—I        that last night before we went to bed.

I asked him to come at seven o’clock, but he __________. It’s already eight o’clock．

Every possible means ________, but the teacher as well as the students ________ found a solution to the problem yet.