Fill in the gaps with the following idioms

• to travel on a shoestring
• have a lot on my plate
• to get away for a few days
• to make hay while the sun shines

1. He learned how
   [ ]when he studied abroad. He had very little money for it.
2. Sorry, I can't go swimming with you. I
   [ ]right now.
3. The city is so noisy and crowded that I want
   [ ].
4. While I was on holiday, I felt that every hotel, restaurant and shop tried
   [ ]
   and make the profit out of tourist season.