—You seem to have known Dr. Ken for a long time.—That’s true. ________ he joined our club years ago.

Bring the plants into a warm room _____ they will soon open.

Michael put up a picture of Yao Ming beside the bed to keep himself _______ of his owndreams.

Knowledge is the food of thought ________，as long as it is put in our brain，we will grow wiser.

It is considered unwise to give a child _______ he or she wants.