We won't know whether it will be successful. We won't know whether there will be good _____.
The workers will go on strike if the demands they ________ put forward are turned down.
—Is Jack on duty today?—It ________ be him. It’s his turn tomorrow.
_______ with so much trouble,we failed to complete the task on time.
He asked me ________ with me.
Could you tell us ________ happens when one student in class expresses a personal opinion ________ maybe offends other students?