How did the Chinese doctors get to Haiti (海地) to help the people there? — They got there ______ plane. [ ]

Why didn’t you call me this morning?——I ______ call you. I called you all the morning, but I couldn’t ______.

I saw himwhen I passed by.

They used to have _____ time that they could see movies every day. [ ]

Who wants ____ the singing club?