1.This is the first time I have sung before the class
->I have.....never sung before the class before.......
2.They like driving to work
->They are..fond of drving to work.....
3.The spends 20 minute having breakfast everyday
->It takes....them 20 minutes to have breakfast everyday.......
4.That shirt is cheap. She can buy it
->(enought...to) That shirt is cheap enough for her to buy.
5. The wather was very cold . We culdn't go out
-> (too... to) The weather was too cold for us to go out.
6. Thís exercise is so long that I can finish it in an hour.
-> This /It is such..a long exercise that I can finish it in an hour..
7.when did she last play tennis?
->How long is it..take since she played tennis?.....
8. It started raining three days ago
->It has..begun to rain for three days...
9. They would rather walk than ride to school
-> They prefer...walking to riding to school.....
10. He last went to the zoo in 2015
-> He hasn't..gone to the zoo since 2015....