The food tastes _________ and sells __________.
The child is only 4 years old, he is not old enough to___ himself.
His grandpa moved to Beidaihe tothe hot weather in Wuhan every summer.
I looked for the key _______ the door, but I didn’t find it. [ ]
The news that scientists so far haven’t found out the cause of bird flu discouraged some WHO officials,________?