下面共有l5个句子，每个句子中均有1个词或短语划有底横线，请从每个句子后面所给的4个选项中选择1个与划线部分意义最相近的词或短语
1 We are sure that he will get over his illness.
A certain
B aware
C happy
D determined
2 The policemen acted quickly because lives were at stake.
A in despair
B in danger
C in misery
D in pain
3 If headaches only occur at night, lack of fresh air is often the cause.
A start
B begin
C happen
D visit
4 The ice is not thick enough to bear the weight of a tank.
A suffer
B accept
C receive
D support
5 A small number of firms have ceased trading.
A completed
B finished
C fulfilled
D stopped
1．A 2．B 3．C 4．0 5．D