Crow considers the TV shows “a beautiful model of_______ I call high-tech learning. They can teach children about things in ways traditional education can’t.”
| A．which | B．why | C．what | D．that |
—Did Alan enjoy seeing his old friends yesterday?
—Yes, he did. He ________ his old friends for a long time.
| A．didn’t see | B．wouldn’t see | C．hasn’t seen | D．hadn’t seen |
—Will you go to the park now?
—Not until I ________ my physics exercises.
| A．will finish | B．have finished |
| C．will have finished | D．had finished |
Unfortunately, when I dropped in, Professor Smith ________, so we only had time for a few words.
| A．has just left | B．had just left | C．just left | D．was just leaving |
—Does Liu Hui serve in the army?
—No, but he ________ in the army for three years.
| A．served | B．has served | C．is serving | D．would serve |
I feel sure I ________ her somewhere before.
| A．was to meet | B．have met | C．had met | D．would meet |