Unit 8 易混淆词语练习
I.选词填空。
(A) whether, if
1. ________ they win or lose is all the same to me.
2. We won’t have a picnic ________ it rains tomorrow.
3. I don’t know _________ or not he will come.
4. We were wondering ________ to go today or tomorrow.
(B) the number of, a number of
1. __________ students in the class is about twenty.
2. Many students took part in 15,00-metre race, but only _________ them kept on running to the end.
II. 单项选择。
( ) 1. You have not yet answered my question ______ I can join in the party tonight or not.
A. whether B. if C. that D. which
