— How are you, my dear?— Not so well． I've ___ the flu．

When you visit a museum you must ask for _____ before taking photographs inside it. 

I still don’t know ______ she’s planning to come to my birthday party or not.

I thought I knew the way to the small wood house in the jungle，but ________ I got lost.

I could hear voices but I couldn’t ______ what they were saying.