5. She spoke too ______( quick
),I couldn’t hear you clearly.
6The world’s population is one of the
biggest_________(challenge) of the world today.
7 I think________(speak) English is more
difficult than written English.
8 Every player of the team was_________ at
the__________(frustrate) result.
9 Don’t be afraid of_______ (make) mistakes
when you speak English.
10 ________ (use) such a mobile phone can
make us look good in front of others.
三 单项选择