48.It was great joy_________he received the news that his long lost son would return home49.
9._____ makes this shop different is that it offers more personal services.
8.Although this_______ sound like a simple task, great care is needed.
7.Please ______ your sister to bring the ticket for the concert.
6.Be careful! The slightest spark(火花)could ______ the fireworks.
5.The police are offering a $ 60,000 _____ for information about the killer.