一Why didn’t you try your best to get on the bus?一I tried to,but ______ I could,it started moving.
----Where is Mary? ----At ____.
----Where ____ the dictionary? I can't see it anywhere. ----I ____ it right here. But now it's missing.
Five apples are not enough for them, they need ____.
----Would you please lend me the dictionary?---- ____.
He was so pleased with all ______ we had done for him _____ he wrote us a letter to praise us for it.