根据句子意思，用适当的单词填空。

1 In five year, Thomas will ________ a doctor.

2  ---You could write him a letter.

   ---Sorry, I don’t like _____________ letters.

3 The boy was walking down the street __________ a UFO landed on Center Street.

4 The girl said she wasn’t mad ______ me any more.

5---What will __________ if they watch a video at the party?  --- Some students will be bored.