By the time you receive this letter, I ___ for Japan.
Đáp án B: By the time + Present Simple, main clause (Future Perfect).
Long ago, women were_________to vote in political elections.
__________ John Kennedy was elected president, he was the youngest American President ever.
It is stated in the passage that____________________ .
The packages___________________ so that it would be easier to carry them.
We must push the piano to the corner of the hall to_____________________ our party tonight.
The examination was not very difficult, but it was_____________________ long.
The boat was sailing north when a terrible storm_____________ .
Supporters of free-market globalization point out that_____________________ .
The word "allocated" in the passage mostly means "______".
_______ has been a topic of continual geological research.