Who will be our Biology teacher this term— Mr. Green will teach __________ Biology and his lessons are worth ________.

I can think of many cases____ students obviously knew a lot of English words and expressions but couldn’t write a good essay[ ]

I think the red car _______ belong to Miss Wang because she bought a new car yesterday.–It __________be her car’s because her new car is blue.

Daniel is good at __________ lessons.

Tom ______ for 5 years, but he has beenleading a new life since he was set free.