_____________they visited the Science Museum, they showed great interest in everything they saw．
| A．The first time | B．For the first time |
| C．At first | D．At the first time |
相关试题
Americans eat vegetables per person today as they did in 1970.
| A．more than twice | B．as twice as many |
| C．twice as many as | D．more than twice as many |
Madam Curie won two Nobel Prizes for her scientific .
| A．observation | B．achievement | C．determination | D．consideration |
The hunter his gun against the tree and down for a rest.
| A．laid, lay | B．lay, laid | C．laid, lied | D．lied, lay |
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