__________for the bus, I heard a noise,
| A．While waiting | B．While I waiting | C．I was waiting | D．Waited |
相关试题
Is there any possibility ____ their team will win the championship?
| A．how | B．which | C．what | D．that |
To keep heal
thy, she cycling as a regular form of exercise after she retired.
| A．took up | B．contributed to | C．carried out | D．made for |
What on ____ earth are you doing under such ___ burning sun? Go indoors.
| A．the; the | B．an; a | C．/; / | D．/; a |
---Can I get out in the daytime?
--- No. The school rules state that no child ______ be allowed out during the day unless accompanied by an adult.
| A．shall | B．need | C．must | D．should |
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