That’s the new machine ______ parts are toosmall to be seen

________cleaning the yard and making up the beds for theold，we also read newspapers for them and had chats with them.[ ]

I didn’t expect that so many people ___ to join in the work.

I don’t know if he ____. —He’ll come if it ___.

You know who came to our schoolyesterday– Professor Smith We once met at aconference.– ______. He came and gave a wonderfulspeech.