–Who is the tallest boy?–It ______ be John. Because John is of medium height..
There are ________ floors in the mall and on the _____ floor there are many clothes shops.
There are ten chairs and twelve teachers here. So we need _________ chairs.
—_______ would you like for dinner? —Some vegetables and fish.
This pair of jeans ______her at all.
Some children have_______ sugar and it is_______ their teeth.