The father seldom had time to share with his children, because he devoted most of his time _______ research in his lab.

His behavior at the party last night seemed rather_______Many of us were quite surprised

Mr Green has two children. One is a son, and ______ is a daughter.

single word ________ about the way he wastreated, but his unhappiness was revealed through his expression.

I feel like ______ in the river.