“Steve’s love and energy ______ and improve all of our lives.” Apple said about Steve Jobs’ passing.

Michael ______ here to see you and he ______ a note on your desk

Is that boy Tom —It ___________ be Tom. He has gone to his hometown to visit his grandparents.

I’m sure you will do better in the test because you ________ so hard this year

Scientists believe that it might be several years ______ the medicine can be used on human beings.