Who are you waiting ________ the school gate, Millie?
| A．不填 | B．for | C．at | D．for; at |
—I called you last night, but no one answered me.
—Oh, I________ a shower.
| A．have taken | B．was taking |
| C．took | D．will take |
I have _____ decided when to leave, but my sister hasn’t decided_____.
| A．yet, yet | B．already, already |
| C．already, yet | D．yet, already |
—Do you know _____?
— Sorry, I don’t. But I saw her just now.
| A．where has she gone | B．where she has gone |
| C．where she has been | D．where will she go |
—Are you worried about the coming exam?
—No, I think the more ________ you study, ________ mistakes you’ll make.
| A．careful, the less | B．careful, the fewer |
| C．carefully, the less | D．carefully, the fewer |
— ________ have you learned to play the piano?
— ________ five years ago.
| A．How long, For | B．How often, For |
| C．How long, Since | D．How soon, Since |