第一题选择C!
pretend to do sth 假装做某事
petend to be studying 假装正在学习,
从when his mother stepped into his room可以判断出要用进行时态be doing
第二题,可以改,多数情况下定语从句里面可以用which就可以用that
第三题,可以,如上所述.
【欢迎追问,谢谢采纳!】
第一题选择C!
pretend to do sth 假装做某事
petend to be studying 假装正在学习,
从when his mother stepped into his room可以判断出要用进行时态be doing
第二题,可以改,多数情况下定语从句里面可以用which就可以用that
第三题,可以,如上所述.
【欢迎追问,谢谢采纳!】