They _____the ship until it disapears in the distance.
题目
They _____the ship until it disapears in the distance.
A.saw B.watched C.noticed D.looked
答案
B
watch表示长时间的观察
例句：Watch the water until it has boiled.
注意（留心）这壶水,直到它烧开.
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
最新试题
热门考点