What ______ heavy snow. Let's go out for a walk in ______ snow, shall we?
. --- Excuse me, but I want to use your computer to type a report. --- You _____have my computer if you don't take care of it.
--- Who is the girl standing over there? --- Well, if you ______ know, her name is Mabel.
Children under 12 years of age in that country _____ be under adult supervision when in a public library.
--- Isn't that Ann's husband over there? --- No, it ______ be him---I'm sure he doesn't wear glasses.
Mr White____at 8:30 for the meeting, but he didn't show up.