...在分词表伴随。疑问:但为什么不填不定式 to check 呢?可以理解为用不定式表目的啊!一种方法是因为有逗号,所以只能填 checking 表示伴随。但如果没有逗号的情况下,又该怎么判断呢。She read the letter through before sending it (che...
请问专家老师:It is a bad decision to have come here 是否可用 It is a bad decision to come here代替?此外,是否存在,it is... for sb to have done sth 结构;如存在,是否可以替换成 it is.. for sb to do sth 结构?
...ffice, but forgot to turn off the lights.
此题答案是to lock,请问可以填动名词locking吗?众所周知:remember doing sth表示“记住做过某事”,remember to do sth表示“记住要做某事”,此句的意思应该是:我记得在离开办公室前锁...