改革开放以来,我国社会生产力和综合国力显著提高,人民生活水平和社会保障水平显著提高,国际地位和国际影响力显著提高。由此,对我国国情可以这样认为 ( )
______ the house prices have risen sharply,the number of buyers is as great as ever.
—Do you think he'll succeed? —Well, he's helped by so many classmates,what is more,he works extremely hard. So he will ______ succeed.
Eating too much fat can ______ heart disease and cause high blood pressure.
He is ______ a teacher to me, and he is also my friend.
That night he returned home, ______ .