7、esf.thenuberfD.alargeauntf【答案与解析】 B assesf后接可数名词与不可数名词均可;alargeauntf和不可数名词连用。2.assistvt≈vi帮助;援助;协助assistsbith/insth帮某人做某事assistsbindingsth帮某人做某事assistanen帮助;协助assistantn助手;助理1)uillberequiredt________rsSithinpreparingareprt你将要协助史密斯夫人准备一份报告。2)Iaillingt________heneverthereisanp