Li Lei _____knew any Japanese, did he

Having been here for two years, I have been accustomed___________ in such a noisy place.[ ]

______ your son has no interest in piano, there is no point pushing him to learn it.[ ]

Betty is _________careful as I, but I’m _________ than you.

From the ________ look on his face, we know that the price of meat _________.[ ]