1. It was quite waste of time 【？】 all. 【？】に入る単語は？

• before
• at
• after

2. My dog does not 【？】 me as his master yet. 【？】に入る単語は？

• think
• good
• regard

3. You should learn idioms in 【？】 to understand English more. 【？】に入る単語は？

• good
• use
• order