The new discovery _______ be of great service to mankind.
A
beboundto：注定要，一定会。本题中主语是Thenewdiscovery，所以谓语动词要用is。句意：这项新发现对于人类必定大有用处。
_______ for your laziness，you could have finished the assignment by now.
It rained hard yesterday, ______ prevented me from going to the park.
The book fair has received a positive ________ from readers.
I'd like to remind you that there is no_____on the part of suspects to answer questions.