When I missed the bus, the only thing I could do was call a taxi. (no alternative)                            When I missed the bus, _____ call a taxi.

As well as these arrangements, extra ambulances will be on duty until midnight. (addition) _____ arrangements, extra ambulances will be on duty until midnight.

I was just about to hand in my resignation, but I had second thoughts. (verge)                               I was _____ , but I had second thoughts.

He lacks the capacity to understand how other people feel. (incapable)                             He _____ how other people feel.

You're entitled to ask for your money back. (rights)            You're _____ for your money back.

My sister, who I have always confided in, has been a pillar of support for me. (whom)                   My sister, _____ , has been a pillar of support for me.

She's always taken pride in her appearance. (herself)                       She _____ her appearance.

Scientists are about to make a major new discovery. (brink)                                                                    Scientists _____ a major new discovery.

Do you know the man she's getting married to? (whom)     Do you know the man _____?

There are ten highly qualified experts on the committee. (consists)                                         The committee _____.

It's the responsibility of local authorities to collect household waste. (charged)                       Local authorities _____ household waste.

Feel free to look around - you needn't buy anything. (obligation)                                      Feel free to look around – you _____ anything.