With few people ________ pigs, the price of pork _______ .
I told your friend how to get to the hotel, but perhaps I______have driven her here.
I’m sorry to have hurt you, but I didn’t do it________.
It is the first time that I_______to Beijing.
----Must I do well in all the subjects, Mum? ----Sure, baby! As an old saying goes, knowledge is _________.
In order to protect the trees, the old man lives _________ in a _________ house, but he doesn’t fell _________.