You haven’t been to Guangzhou, have you– . How I wish to go there again.

What would you like to eat – _______ is to my taste in thisrestaurant, I’m particular about food.

We’ve planted ________ trees in the center of our city this year.

With a lot of difficult problem___, the newly-elected president is having a happy time.

下列各句中，没有语病的一句是（ ）