David has made much progress this term.---,and-----

David has made much progress this term.---,and-----
A.So he has;so you have B.So has he; so have you
C.So he has;so have you D.So has he;so you have
_______ the last bus,we had no choice but to take a taxi.
A.missing B.missed C.being missed D.having missed
Only when the meeting began_______ that he had left his papers at his office
A.he realized B.did he realize C.should he realize D.will he realize
句型转换
Walking and riding your bike are effective;doing school sports are effective too
Walking and riding your bike areeffective,and_______________________________