Please eat more fruits ______ apples and bananas.

Though having lived abroad for years, many Chinese still ______ the traditional customs.

When we arrived in ________ used to be called the foggy capital，we found London completely changed.London is now one of the capital cities in the world with the finest air quality.

Coughing _____ also be used for social reasons, such as the coughing before giving a speech．

We’d better stay here a little longerhe turns up unexpectedly.