--- I ______ so busily recently that I ______ no time to help you with your math. --- That’s OK. I can manage it by myself.
As is well-known,the brain performs a very important ________,which controls the nerve system of the body.
—What do you think of the project put forward by the Blacks? —Considering its real ________,it will be well worth putting into practice,I suppose.
The two parties held the talk in a friendly ________ and reached an agreement.
We should look up to him as a shining example of ________ to duty.
Kelly gave me a vivid ________ of her trip to Mount Tai after her return.