(Unit15)

1.No matter how hard i work , i can't dance.

2.No matter how difficult if the work is,she can do it.

3.No matter how careful you are, accidents always happen.

4.No matter how much i warn him, he dosen't listen to it.

5.No matter how many people deny it, its true.

6,No matter how different they look,they're twins.

7.No matter how many friends you have,nothing is better than a family.

8.No matter  how hard we push, the door will never open.

9.No matter how bad the weather is, we have to gothe island.

10.No matter how much we think, i couldn't find solution.

(Unit16)

1.I have trouble breathing.

2.I have trouble adjusting.

3.I have trouble downloading it.

4.I have trouble sleeping at night.

5.I have trouble explaning it to myself.

6. I have trouble focusing the work.

7. I have trouble closing my mouth.

8.I have trouble believing what they say.

9.I have trouble reading black words on a white board.

10.I have trouble finding the orginal copy of the book.