The thought ______he might be a scientist some day encouraged him to study hard.
—You didn’t tell me the truth about this matter, Barbara. —Are you ____ me of lying?
Most of the roads were covered with thick snow, ____ made our journey more difficult.
— You look tired. — Yes. I ___ non-stop until 8 o’clock.
People are living in ___ world where mouse clicks rule our life, so online searches have become _____ must.
It is only _______ your heart is really in it _______ you can play your best.