While he was investigating ways to improve the telescope Newton made _______discovery which completely changed ____ man’s understanding of color.
a ,/ B. a ,the C. /, the D. the ,a
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-- Alice, have you heard that the grocery store down the street was ____, and nearly all the things there were stolen?
--- God! Really? That’s horrible!
| A．broken down | B．broken up | C．broken into | D．broken out |
____ a more comfortable life, the poor couple worked hard and took on more part-time jobs.
| A．Aiming at | B．Adding to | C．Relating to | D．Taking advantage of |
--- It is too cold for January this year.
--- Yes, but it was still ____ wh
en I first moved to the city years ago.
| A．coldest | B．the coldest | C．cold | D．colder |
The hotel wasn’t particularly good, but I _____ in many worse hotels.
| A．was staying | B．stayed | C．would stay | D．had stayed |
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