问题

They _ the train until it disappeared in the distance.
A:saw
B:watched
C:noticed
D:realized;
B:watched
C:noticed
D:realized;
正确答案是:
同类题型
The children are too young to look after ______.
Your plan is far from satisfaction , so you must_____ more time and energy to it.[ ]
Let’s go to Maxwell to buy the fruit because the pricethere is quite _____. We can pay less.
Thanks for _______ me to yourparty.
One should remain ______ and think of ways to escape when facing danger.