Theyusuallyhavethemedicinebefo

They usually have the medicine __________ before putting into the market all over the country.

A．testing out

B．to be tested out

C．being tested out

D．tested out

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This book is well worth _______. Would you like to buy one?

A．to read

B．being read

C．reading

D．to be read

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These two words are different _______ each other in spelling while they are similar ______ each other in pronunciation.

A．from; to

B．from; as

C．with; like

D．with; to

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Don’t forget to take a breath of ______ fresh air and have some exercise each day. It will make ____ difference.

A．/; a

B．the; a

C．/; the

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--- I’ll be away on a business trip. Would you mind looking after my cat?
--- Not at all. ______.

A．I’ve no time

B．I’d rather not

C．I’d like it

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Whoever leaves the room last must ______ that all the lights are turned off.

A．is sure

B．make sure

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D．look out

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