Don’t start reading a book ________ you
题型:选择题
问题:
Don’t start reading a book ________ you find that it’s one you can read with ease and understanding.
A.when
B.if
C.unless
D.though
Don’t start reading a book ________ you find that it’s one you can read with ease and understanding.
A.when
B.if
C.unless
D.though