The only problem was ________ we kept getting lost! But London people are very friendly and helpful．

1. A.
   why
2. B.
   whether
3. C.
   that
4. D.
   how

The only problem was ________ we kept getting lost! But London people are very friendly and helpful.

　 A. why　　　　　 B. whether　　　 C. that　　　　　 D. how

The only problem was _______ we kept getting lost! But London people are very friendly and helpful．

A．why　　　　 B．whether C．that 　　　 D．how