the beginning of this term 是时间点还是时间段

Question

英语填空
用since或for填空
1.We have learned five lessons------the beginning of this term.
2.Mrs,Liao has been in hospital------last week.
3.I have stayed at my aunt is -------two week.
4.My brother has bought the car------half a year.
那些是时间点?那些是时间段?

Answer 1

1.since;
2.since
3.for
4.for
since的是时间点,FOR是时间段