You can only be sure of ____ you have at present; you cannot be sure of something ____ you might get in the future.

I went along the beach thinking of nothing ____.

The dangerous virus ____ in the next few weeks in the laboratory can cause fatal diseases.

All the dishes in this menu, unless ____ stated, will serve two to three people.

Edward, you play so well, but I _____ you play the piano.

She’ll never forget her stay there ______ she found her son who had gone missing two years before.       

Jane has been so ______ in getting used to everything that she hasn’t had time for social activities.

Though trying really hard, they acknowledged ____ at last.

---Guess what? We’ve got our visas for a short-term visit to the UK this summer.

---How nice! You ____ a different culture then.

As he has worked in the army as an electrical engineer for many years, he has every ____ for the job.