1£®We haven't found a good place ________ we are going to place our new sofa.

2£®Nowadays almost everyone prefers to use a smart mobile phone ________ functions are more practical.

3£®The book from ________ I learned a lot was written by a famous writer.

4£®Anyone ________ upgrades their professional knowledge to a new level can apply for these courses.

5£®Happiness and success often come to those ________ are good at recognizing their own strengths.