We have maintained the level of visitors to the museum this year. (STABLE) The number of visitors to the museum ... this year.
The number of visitors to the museum HAS REMAINED STABLE this year.
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15
Staying another night would have meant paying more. (IF) I would have had to ... another night.
I would have had to PAY MORE IF I HAD STAYED another night.
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15
People will always want entertainment, providing that they have the time to enjoy it. (LONG) There will always be a need for entertainment, ... the time to enjoy it.
There will always be a need for entertainment, AS LONG AS PEOPLE HAVE the time to enjoy it.
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15
It was only after telling everyone that it was his birthday that John got lots of cards. (HAVING) John only got lots of cards ... it was his birthday.
John only got lots of cards AFTER HAVING TOLD EVERYBODY (THAT) it was his birthday.
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15
They confidently expect the broadcast to go ahead at 6 p.m. (SURE) They ... go ahead at 6pm.
They ARE SURE (THAT) THE BROADCAST WILL go ahead at 6pm.
