Complete the second sentence so that it has the same meaning as the first. Use the word given in CAPITALS but do not change its form. Use no more than five words, including the word given.

1. Perhaps some volunteers helped the soldiers. MIGHT
The soldiers ... some volunteers.

2. I'm sure the burglars escaped through that open window. MUST
The burglars .... through that open window
 
3. Tom definitely wasn't involved in the fight. I saw him at the cinema. CAN'T
Tom ... in the fight. I saw him at the cinema.

4. I was supposed to send the letter today. SHOULD
The letter ... today.

5. The two governments have finally negotiated an agreement. BEEN
An agreement ... the two governments.

6. The aid workers are helping hundreds of people every day. BEING
Hundreds of people ... every day by the aid workers.