(2018山西改编)If a student is able to ________ somebody else what he's learnt from textbooks, it shows he's understood it well.
A.post B.lend C.teach D.punish
(2018铁岭)The pancakes ________ good. There are many people waiting in line to buy some.
A.sound B.feel C.turn D.taste
—Kate, I' m going shopping. Anything to buy for you?
—Yes, that will save me a ________.
A.hand B.trip C.visit D.bill
Even though Jenny is only 12 years old, she is n________ as tall as her father.
For safety, Tom's parents don't allow him to stay outside too l________ after school.
We can't waste food because many people in the world is still h________.