【单选题】
Our civilization cannot be thought of as _____in a short period of time.
①
to have been created
②
to be created
③
having been created
④
being created
【单选题】
He cannot ____ a car, for he does not earn much money.
①
obtain
②
afford
③
donate
④
consume
【单选题】
Air is very important, _________ we cannot live any more.
①
without that
②
no which
③
where
④
without which
【判断题】
答题说明：句子没有语法错误请选择“正确”，有语法错误请选择“错误”Do only one thing at a time. You cannot listent to music or people and memorize at the same time.
①
正确
②
错误
【单选题】
He cannot be tired _______ he has walked only half a mile.
①
since
②
whether
③
when
④
as long as
【单选题】
If you listen to the tape again and again, you may ____.
①
want to retell the general meaning of what you hear from the tape
②
feel so bored that you cannot understand what you hear from the tape
③
understand what you hear from the tape better and better
④
repeat the exact words you hear from the tape
【单选题】
The dispute is ____ to be settled for a long time to come.
①
uncertain
②
susceptible
③
impossible
④
unlikely