I had promised to send him an email_______ I got home but I was so busy that I forgot to do so .
30.1 tried to fix the car myself but ______ the attempt after a couple of hours.
29.On weekends when Dianna comes back home from school, she eats everything in ______.
28.In most cases, customers can't help ______ to buy things they actually do not need.
27.What do you think of his suggestion ______ we organize a football club?
26.— How is the campus cleaning going? — We've cleaned it up, ______ at least most of it.