On account of fuel supplies being finite and many people being wasteful, we will have to install ________ solar heating device in our home.
| A．some type of a | B．some types of a | C．some type of | D．some types of |
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--- Poor Steven! I could hardly recognize him just now!
--- . He has changed so much.
| A．Never mind | B．No problem | C．Not at all | D．Me neither |
A computer with ten thousand books ____ to a school in a mountain village as a gift.
A. has offered B was offered C. are offered D. have offered
. Stand over there ______ you’ll be able to see the oil painting better.
| A．but | B．till | C．and | D．or |
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