根据句意用括号内所给词的适当形式填空
1.We’ll have a surprise party for my mother’s (forty) birthday next Saturday.
2.The young man (live) alone.
3.—What’s the secret of your (success)?
—Work hard.
4.It’s (danger) to play football in the street.
5.Which team do you think will be the (win) of the 20th FIFA World Cup?
6.The plane landed (safe) yesterday.
7.We can’t walk (cross) the street when the traffic light is red.
8.—Will you come and pick me up tomorrow morning?
—Yes,I (promise).
9.A little bird (fly) in through the open window and she set it free at once.
10.It is worth (mention) that Nanjing has entered Top 10 Appealing Chinese Cities
11.He was (frighten) when he heard the bad news.
12.China became the second (large) movie market in the world,behind the US.
13.Nothing can prevent us from (realize) our “Chinese Dream”.
14.The little girl is very kind and she always talks to people (polite).
15.It’s a (an) (usual) experience,few people have chances to do it.