I didn’t know you go to school by taxi.—-Oh, I __________ take a taxi to school, but my bike needs repairing.

He didn’t work hard, _________ he failed his exam.[ ]

______ is no wonder that people say that computers are ______ the world.

Peter，is there anything else you want to know about China?—Yes，I am still wondering __________ .

Who is _____ English teacher, Jim? –Mr Wang teaches _____ English.