In order to prevent the fire spreading, some of the houses nearby had been ________ before firemen arrived.
Nuclear science should be developed to benefit the people harm them.
The car doesn’t belong to me. , it is impossible for me to lend it to you.
That’s really a problem; no wonder all the students looked .
The lazy waiter ______ to his boss that he had ______ the table.
_____ made the school proud was _____ more than 90% of the students had been admitted to the key university.