We must keep our room clean，for dirt and disease go________，you know.
| A．hand in hand | B．step by step |
| C．from time to time | D．one after another |
相关试题
A week has passed and still nobody has claimed the necklacein the theater.
| A．discovered | B．discovering | C．to be discovered | D．having discovered |
I haven’t been my cousin for ages and he has changedrecogn
ition.
| A．beyond | B．with | C．for | D．what |
, the young teacher is the sort of woman to spread sunshine to her students and colleagues thought her smile.
| A．Sensitive and generous | B．Shy and cautions |
| C．Hand wording and confident | D．Lighthearted and optimistic |
—Excuse me, sir. Could you help me?
—Sure?
| A．What is that | B．What is it | C．What help | D．What do you want |
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