The man ________ is talking to our teacher is Betty’s father．

I’m not sure what will happen during the trip. ____, I will try all possible means to get there .

I don’t know he tomorrow. I think if he , I’ll go to see him.

What’s the matter —I have a stomachache. Maybe I have eaten _____________ tonight.

___________ his arrival __________ the airport, he received a warm welcome from his students.