I took part in the ____ in the sports meeting last week.
| A．800-meter-long | B．800-meters-long | C．800 meter long | D．800 meters long |
I suddenly found myself ____ down the street when I found a crowd of people gathered in the street corner.
| A．run | B．running | C．runs | D．ran |
Although this ____ sound like a simple task, great care is needed.
| A．must | B．may | C．shall | D．should |
In many countries in the world, breakfast is a snack _____ a meal, but the traditional English breakfast is a full meal.
| A．other than | B．more than | C．rather than | D．less than |
It’s a fact ____ he has not received the letter.
| A．that | B．which | C．whether | D．what |
Only when I left my parents for Italy _____ how much I loved them.
| A．I realized | B．I had realized | C．had I realized | D．did I realize |