You can use English or Chinese ________ you travel inSingapore.

________ do you spell “book”—B-O-O-K.

It’s said that there’re plenty of hotels in that town. There ______ be any difficulty for you to find somewhere to stay today.

_______ left, and you will see giraffes after you _______ the bridge.

下列句子中加点的虚词,意义和用法完全相同的一项是(　　)