unit 4 astronomy:the science of the stars section b learning about language 题组ⅰ ⅰ. 单项填空 1. the actor said _________ he’d accept the role in the play depended on the plot（情节）of it. a. if b. whether c. that d. where 2. _________ the universe began with the“big bang”has been widely accepted. a. whether b. why c. that d. what
