The bell rang ___________ I had time to look over my examination paper.A. untilB. whenC. asD. before
题目
A. until
B. when
C. as
D. before
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参考答案和解析
更多“The bell rang ___________ I had time to look over my examination paper. ”相关问题
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第1题：
Look ! The traffic light is red.I ( ) stop my car.A、ought
B、must have
C、must
D、have to
参考答案：D
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第2题：
How did the guests know the party was over?A、there was an alarm clock
B、the host was giving them the “Look, I’m washing the dishes now” hint
C、People began to yawn
D、there was no wine to drink any more
参考答案：B
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第3题：
—Why didn't you go to the cinema yesterday?
—I______, but my daughter returned from America the moment I was leaving.
A. did
B. would
C. was going to
D. had
正确答案：C16．答案为C “你昨晚为什么不去电影院?”“我本打算去，但是我正要离开时我女儿从美国回来了。”该句用过去将来时表示过去打算做某事。
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第4题：
I _______ him study hard until he passes the exam.A.ask
B.made
C.let
D.had
参考答案：C
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第5题：
— Look! These dolls are so cute.— OK. I'll buy () for you.
A、ones
B、one
C、it
正确答案:B
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第6题：
接上题，下列代码实现对闹铃音的控制： assign alarm_time=stop_bell？（time_equ && （（（Second[0]==1'b1) && clk_500) || （（Second[0]==1'b0) && clk_1k))):1'b0; 这个表述可以改写为（）。
A.if (stop_bell==1'b1) begin case(Second[0]) 1'b1:alarm_time=clk_500; 1'b0:alarm_time=clk_1k; default:alarm_time=1'b0; endcase end else alarm_time=1'b0;#B.if (stop_bell) if(!time_equ) begin case(Second[0]) 1'b1:alarm_time=clk_500; 1'b0:alarm_time=clk_1k; default:alarm_time=1'b0; endcase end else alarm_time=1'b0; else alarm_time=1'b0;#C.if (stop_bell==1'b1) if(time_equ) begin case(Second[0]) 1'b1:alarm_time=clk_500; 1'b0:alarm_time减少华法林用量