Which option has a similar meaning to the sentence below?

It's very likely Maria has arrived. She left the office two hours ago. 

Which option has a similar meaning to the sentence below?

I'm sure George didn't steal the money. 

Which option has a similar meaning to the sentence below?

I'm certain that she got on that plane. 

Which option has a similar meaning to the sentence below?

It's highly probable that Maria has arrived at the office by now.

Which option has a similar meaning to the sentence below?

I 'm sure they're not on holiday. I saw them this morning at the office. 

Which option has a similar meaning to the sentence below?

I'm not sure Jan can come to the party next Saturday. 

If we get a move on, we ___ get a table even if we haven't booked in advance. 

Which option has a similar meaning to the sentence below?

I'm sure she'll pass her test. She's worked so hard lately. 

Tom usually leaves at about 7 so he_______be home by now. 

Which option has a similar meaning to the sentence below?

I don't believe she lost her keys again!