Some researchers are finding that daydreaming may be important to __________ mental health. Daydreaming, they say, is __________ good means of relaxation.
Without proper lessons, you could ________a lot of bad habits when playing the piano.
There are so many tall trees in the forest,______________.
--- I don’t know whether I should go abroad or not, Mum. --- I leave_______ to your own judgment whether you should do it.
Many a woman______ important positions in society, which________impossible in the past.
My daughter asked ________second question before I could answer_______first one.