Many applicants stood outside the manager's office, nervously waiting _________ for the job.（ ）
A：to choose
B：being chosen
C：choosing
D：to be chosen
①坚持市场多元化战略，积极开拓国内市场
②降低生产成本，获取价格优势
③减少出口增加进口，保持贸易平衡
④运用世贸组织规则维护自身合法权益
—____ are you doing？
— I'm reading.
