Choose the correct tense

1. While I
   [waited|was waiting] for my guests, I
   [decided|was deciding] to check all the preparations.
2. I
   [bought|was buying] some flowers,
   [had been taking|took] a taxi and
   [went|had gone] to congratulate my friend.
3. We
   [hadn't wanted to|didn't want to] have a big party, because we
   [were agreeing|had agreed] to save money on travelling.
4. It
   [was getting|got] warmer and warmer, so we
   [were stopping|stopped] to have a rest.
5. They
   [waited|had been waiting] for us for some time when they finally
   [made|had been making] a decision to leave.
6. She
   [hadn't thought|hadn't been thinking] about the moving before my husband
   [offered|had offered] to do it.