Experts say walking is one of the best ways for a person to _______ healthy.
| A．handle | B．stay | C．maintain | D．reserve |
But for their help，we the program in time.
| A．can not finish | B．will not finish |
| C．had not finished | D．could not have finished |
But for the help of my English teacher, I the first prize in the English Writing Competition.
| A．would not win | B．would not have won | C．would win | D．would have won |
The doctor recommended that youswim after eating a large meal.
| A．wouldn’t | B．couldn’t | C．needn’t | D．shouldn’t |
This printer is of good quality. If it _______ break down within the first year, we would repair it at our expense.
| A．would | B．should | C．could | D．might |
He did not regret saying what he did but felt that he it differently.
| A．could express | B．would express |
| C．could have expressed | D．must have expressed |