The teacher, with 6 girls and 8 boys of her class, ______ visiting a museum when the earthquake struck. 

You should have put the milk into the icebox, I expect it ______ undrinkable.

—Are these seats available?—Sorry, sir. The seats ________.

.We can’t use the bridge now, because it _______.

 Quantities of precious jewelry_____ buried_____ in the earth.