【单选题】It is Dad's birthday and we _________ for a meal to celebrate. [A] have gone out [B] were going out [C] are going out [D] have been going out
【简答题】According to the author, how can companies be ethical in business?
【单选题】Sam suggested __________ for a walk after supper because it’s good for health. A. to go out B. that going out C. go out D. going out
【单选题】有A、B、C三本书,至少读过其中一本的有20人,读过A书的有10人,读过B书的有12人,读过C书的有15人,读过A、B两书的有8人,读过B、C两书的有9人,读过A、C两书的有7人。三本书全都读过有多少人?( )
【单选题】用来识别,区分始祖,实行族外婚,作用是“别婚姻”的是( )。
【多选题】根据《支付结算办法》的规定,汇票上未记载付款地的,可以作为付款地的有( )。