The book fair has received a positive ________ from readers.
B
A结果，效果B反应，回答C解决，协议D解决，解答
Becauseofthebadweather,thesportsmeethadtobe________.
They are eager _______ abroad.
Heblamedhispoorperformance_____jetlag.
Thenewdiscovery_______beofgreatservicetomankind.
I don ’ t need any help at the moment,but I _____your offer.
