1 I have had a temperature[ because ]i had a headache.
因为我头痛,所以要量体温
2 Mr.black has lived in china[ for ]five years ago.
for five years ago.是固定搭配1.a。since b.for c.before d.after2.a,before b.for c./ d.since1.a.since b.for c.before d.after选A since 也是因为的意思2.a,before b.for c./ d.since选B for上面有解释了