请问各位这两句:
1.
A: What time is it ?
B: Well, we came at seven, and I'm sure we've been here for at least an hour.
So it [must have been] around eight o'clock.
A问的问题是现在式,[]不应该是要去回答A的问题吗? 所以应该是现在是接近八点不是吗?
2.
A: I met Akako's husband at the reception. We said hello to each other,
but when I asked him a question in English, he just smiled and nodded.
B: He [must not speak] much English.
这句[]是根据过去的事件的经过在现在做出推测,所以用现在式,对吗?