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I’m afraid the envelopes must be delivered at once, _____ the conference brochures won’t be mailed.(A) unless(B) in case(C) otherwise(D) yet
题目
I’m afraid the envelopes must be delivered at once, _____ the conference brochures won’t be mailed.
(A) unless
(B) in case
(C) otherwise
(D) yet
相似考题
更多“I’m afraid the envelopes must be delivered at once, _____ the conference brochures won’t ”相关问题
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第1题：
Henry's job was to examine cars which crossed the frontier to make sure that they were not smuggling anything into the country. Every morning，except at weekends，he (11) see a factory worker coming up the hill towards the frontier， (12) a bicycle with a big load of old straw on it. When the bicycle arrived the frontier，Henry used to stop the man and order him to take the straw off. Then he would examine the straw very carefully to see (13) he could find anything，after which he would look in all the man's pockets before he let him tie the straw up again. The man would then put it on his bicycle and go off down the hill with it. Although Henry was always (14) to find gold or jewelry or other valuable things hidden in the straw，he never found (15) ，even though he examined it very carefully. He was sure that the man was smuggling something，but he was not (16) 鱼to imagine what it could be.
Then one evening，after he had looked through the straw and emptied the factory worker's pockets (17) usual，he said to him，“Listen，I know that you are smuggling things (18) this frontier. Won't you tell me what it is that you're bringing into the country so successfully? I'm an old man，and today's my last day on the job. Tomorrow I'm going to (19) . I promise that I shall not tell anyone if you tell me what you've been smuggling. ”The factory worker did not say anything for (20) . Then he smiled，turned to Henry and said quietly：“Bicycles. ”
A. should
B. might
C. would
D. must
正确答案：C
[解析] 情态动词would用以表达习惯性“总是，总会”。
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第2题：
---- Look! The man at the gate ________ be our headmaster. He is always standing there every morning.
--- - No, it ________ be him. He is holding a meeting in the office now.
A.must, can’t B.must, mustn’t C.can’t, can’t D.can’t, mustn’t
正确答案：A
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第3题：
下列程序段的时间复杂度为()。for(i=0；i＜m；i++)for(j=0；j＜t；j++)e[i][j]=0；for(i=0；i＜m；i++)for(j=0；j＜t；j++)for(k=0；k＜n；k++)c[i][j]_c[i][j]+a[i][k]×b[k][j]；A.O(m×n×t)
B.O(m+n+t)
C.O(m×t+n)
D.O(m+n×t)答案：A解析：在程序段中，有两段循环程序，第一段是一个双层嵌套循环，另一个是三层嵌套循环，所以基本操作是c[i][j]=c[i][j]+a[i][k]×b[k][j]，此基本操作共执行m×t×n次。 -
第4题：
I’m sure he ____not mind your going with me.A.shall
B. can
C.would
D. must
正确答案：C
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第5题：
25． —I'm afraid the meeting has begun．
—Don't worry． It _________ ． until the bell _________．
A． doesn't begin; rings
B． won't begin; will ring
C． won't begin; rings
D． doesn't begin; will ring
正确答案：C
25．C【解析】not．．． until．．．意为“直到……才……”，主句用一般将来时，从句要用一般现在时。故选C。 -
第6题：
下列程序段的时间复杂度是（）。 for（i=0; i＜m; i++) for（j=0; j＜t; j++) c[i][j]=0; for（i=0; i＜m; i++) for（j=0; j＜t; j++) for（k=0; k＜n; k++) c[i][j]=c[i][j]+a[i][k]*b[k][j];
A．O(m+n+t)
B．O(m+n*t)
C．O(m*t+n)
D．O(m*n*t)
O(n^2)