问题补充:
We should plant more trees to make our city .
A. beautiful
B. beautifully
C. serious
D. noisy
答案:
(答案→)A. beautiful
B. beautifully
C. serious
D. noisy
解析:beautiful形容词,美丽的;beautifully 副词,漂亮地;serious严肃的,严重的;noisy吵闹的。句意:我们应该种更多的树来让我们的城市变得美丽。Make后接形容词做补足语,故选A。