You should have thanked the hostess before leaving—I meant ________But I couldn’t find her when I was leaving

The road conditions there were verygood, _______ was more than we could expect.

Steven has a lot of work to ______ in the office since he has been away for quite a few days.

Where did you put my dictionary after using it this morning? –I put it back ______ I took it

The children like to ________ fireworks on the Spring Festival Eve (除夕).