1.You are most likely to achieve good results in this examination. / It’s most likely that you will achieve good results in this examination.
2.Taking in too much salt and sugar every day will / may cause serious damage to people’s health. / It will / may cause serious damage to people’s health if they take in too much salt and sugar every day.
3.The constant / continuous rise in gasoline prices / That the prices of gasoline went up / rose constantly / continuously has greatly affected the people’s life and the development of the country’s economy.
4.Though severe / strict control measures have been taken repeatedly / again and again by now / up to now, the vast majority of people / most people still feel / find it difficult / hard to afford the current high housing prices.
5.He assured the manager that if / once (he was) appointed / accepted, he would do his best to work for / serve the company, live up to the expectation of the company and strive for his own ideal.