---He has been working hard all the time.---__________ he got full marks in the last English test.
It’s surprising that your brother _____ Russian so quickly—he hasn’t lived there very long.
According to scientists, our mental abilities begin to ___ from the age of 27 after reaching the highest level at 22.
"It's such a nice place," Mother said as she sat at the table______ for customers.
His writing is so confusing that it’s difficult to make out _______ it is that he is trying to express.
Whatever is left over may be put into the refrigerator, _____ it will keep for two or three weeks.