5×____＜49
____×8＜63
下列调查中，适合采用全面调查的是（ ）
加一加，成新字，再组词。
日+土=____ ____
丁+口=____ ____
口+十=____ ____
— Does your mother often wash clothes for you?
— No. I always wash them ____ (I/myself).
