Having been in hospital for two months, he was going to catch up with his classmates.
—I’m afraid I can’t memorize so many new words in 2 days.—_______.
So difficult ______ it to live in an English-speaking country that I determined to learn English well.
The new law has come into _____; surely it will have _____on industry of the country.
He picked up an envelope ____50 dollars in it.
The husband rushed to the hospital ____ he heard that his wife was injured.