We have made good preparations for Sarah’s birthday, but if she ________ late to the party, it would ruin the surprise for her.
Michael __________ here to see you and he____________ a note on your desk.
--How long ___________ each other before they__________ married? --For about a year.
It is a rule in his family that __________ comes home earlier should cook the dinner for the family.
The black horse is___________ of the pair.
I coutdn't have got to the meeting on time____________ an earlier train.