【单选题】What does the man ask the woman to do before tomorrow?
A.
To repair the computer by herself
B.
To ask for another person to help her
C.
To make copies of her work
D.
To check her back carefully
【判断题】滑移是金属塑性变形基本过程之一,不会引起金属晶体结构的变化。
【简答题】艺术必须具有统一性 ,使建筑达到统一有三种方法
【单选题】背阔肌龙虱,是欧洲地区最大的一种水生( )性昆虫
【单选题】背阔肌龙虱,是欧洲地区最大的一种水生_ _性昆虫。
【简答题】Before the flight takes off, all passengers (ask) ______ to fasten their seat belts.
【单选题】Before building a house, you have to ask for the government’s _______.
【单选题】Ask your father for some money, ______ you will be unable to buy a bicycle before September.
【单选题】_____________ he arrives before I get back,please ask him to wait.
【简答题】In case they arrive before I come back, please ask them to wait for a few minutes.