It is difficult for a two-year-old child (read)__1__this book.
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By using the credit card, people no longer need carry about large sums of money while ( travel)__1__
It took three months for the two companies to reach an (agree)__1__.
I think French grammar is much ( difficult)__1__than English grammar.
This model of typewriter is efficient ,economical and (practice)__1__for college students.