He is said _______ a new machine recently, but I don’t know when he will make it.
In order to go to a famous university, you must ________ each of the three years in Senior High School.
________ to our study is the best way ________ high grades.
The boss _______ company I worked in two years ago has ______ in solving such kind of problem.
When you are in a foreign country, you may miss ______ Chinese food a lot. As a result, you hope to have ______ big supper after a tiring day.
I should not have laughed if I _________ you were serious.