—Do you have ________ difficulty working out the problem?—Yes. It is ________ me.
30. Even if you are an experienced teacher, you sometimes ____ make some mistakes.
27.-What an amazing story! It’s the most impressive story I’ve ever read. -But I’m sure it won’t interest ____.
35.-Did you have a good sleep last night? -Yes, never sleep ____.
32. Two middle-aged passengers fell into the sea. ____, neither of them could swim.
29. His parents put a lot of effort into getting him ____ to a key school.