Cindy _______be late, so don't wait for her.
may
You __________ drink 8 glasses of water a day.
should
Michael_______speak English fluently.
can
There be________steak for dinner.
may be
The problem __________ be solved finally.
can
Students __________ use calculators during math class.
can
______ you help me lift this bag?
Can
They ________ have called while we were out.
may
________ I come in?
May
