If we had taken his advice,the project _sooner.
could have completed B.would be completed
C.could complete D.would have been completed
I found it hard to concentrate on my work _ so many people around.
A because B with C when D by
.________the harmful effects of smoking ,he decided to give it up.
A convinced of B convincing C convincing of D convinced by
要有原因 为什么选这个~..这几道做的我好苦恼