— I don’t understand why you didn’t go to the lecture yesterday afternoon.
—I’m so sorry.But I my homework.
| A．had done | B．was doing | C．would do | D．am doing |
_________ surprise you have brought us!
| A．What a | B．What | C．How a | D．How |
Finally they managed to find a path _______.
| A．to follow | B．following | C．to go | D．going |
The old man came, _____a big dog.
| A．followed | B．following by | C．and following | D．followed by |
They traveled ________, all the way up to Wisconsin .
| A．the north | B．in the north | C．north | D．the south |
The vase rolled over the table, fell onto the floor and ______.
| A．was broken | B．broke | C．breaking | D．broken |