We＇ve just installed two air-conditioners in our apartment, ______ should make great differences in our life next summer.

It is not ______ much the language as the background that makes the book difficult to understand.

She ______ fifty or so when I first met her at the conference.

Linda was ______ the experiment a month ago, but she changed her mind at the last minute.

If only the patient __讲过去的事情____ a different treatment instead of using the antibiotics, he might still be alive now.虚拟

‘You ______ borrow my notes provided(条件） you take care of them,＇ I told my friend.

All the President＇s Men ______ one of the important books for historians who study the Watergate Scandal.

There are as good fish in the sea ______ ever came out of it.

Which of the following sentences expresses "probability"?

The square itself is five hundred yards wide, five times ______ the size of St. Peter＇s in Rome.

In his plays Shakespeare ______ his characters live through their language.