单项选择题

A．Soft water contains more dissolved minerals.
B．Hard water contains more dissolved minerals.
C．Hard water is not drinkable.
D．Soft water is easier to drink.
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单项选择题
A．In the library.B．In the shop.C．In the lab.D．In the restaurant.
A．In the library.
B．In the shop.
C．In the lab.
D．In the restaurant.
单项选择题
A．She is going to see a film.B．She is going to attend a concert.C．She is going to the library.D．She is going to visit her friends.
A．She is going to see a film.
B．She is going to attend a concert.
C．She is going to the library.
D．She is going to visit her friends.
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