You don’t have to know the name of the author to find a book. You ____find the book by the title. 
#89104
A
must
B
need
C
can
D
would
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________ your letter, I would have started off two days ago.
#87250
A
If I received
B
Should I receive
C
If I could have received
D
Had I received
If I ___ the answer to the question , I ____  you..
#88939
A
know; would tell
B
would know; would tell
C
knew ; would tell
D
know ; tell
 —Why didn’t you attend the lecture yesterday?—I didn’t think that we _______ on Sundays.
#90145
A
should
B
ought to have
C
shouldn’t have
D
will have to