【单选题】He placed the ladder ______ the wall and climbed onto the top of the house.
【简答题】He is at law with the enterprise.
【单选题】They ________ play football last Friday because Simon forgot to bring his football here.
【单选题】上题中,若 U线断开,则 iv =___A。
【单选题】They _______ play football last Friday because Simon forgot to bring his football here. [ ]
【简答题】Simon forgot __________ (4个词)(何时与朋友见面).