Having an outdoor meal is always fun, but it can also be damaging to the planet if ______.
—How was your recent trip to Jiuzhaigou? —I’ve never had one before.
It was not until I was chosen monitor of the class ______ to realize the importance of teamwork.
Although an earthquake has just happened, people here still ______ their lives as usual.
—How come you were half an hour late for work this morning, Mike?—_______My car broke down halfway.
—The dinner was very good. I am so full.—That’s too bad. But some dessert ________.