22. —Who______ it be that is knocking at the door? —It ______ be Father, but I’m not sure.
The majority of people in the town strongly ____ the plan to build a playground for children.
It is ____ greatpitythat the discovery of flight MH 370 still proves to be ____ failure.
The top leaders of the two countries are holding talks in a friendly __________.
The chairman asked me to __________ the report, because he didn’t want to speak for too long at this meeting.
Passengers will likely face the usual struggle to get their tickets during festivals, __________ at railway stations, where long lines are expected.