下面共有15個(gè)句子，每個(gè)句子中均有1個(gè)詞或短語(yǔ)劃有底橫線，請(qǐng)從每個(gè)句子后面所給的4個(gè)選項(xiàng)中選擇1個(gè)與劃線部分意義最相近的詞或短語(yǔ)。
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