质押担保是指借款人或第三人转移对法定财产的占有，将该财产作为贷款的担保。质押担保包括（）。

The headmaster wanted the classroom building ______ as soon as possible.

A．to set up

B．to have been set up

C．to be set up

D．being set up

The headmaster wanted the classroom building ______ as soon as possible.

A．to set up

B．to have been set up

C．to be set up

D．being set up

The headmaster warned him to ______his ways if he wanted to stay at the school.

A．repair

B．restore

C．mend

D．protect

Tommy wanted to be a truck driver because______.

A．he hated sitting in the classroom doing homework

B．he enjoyed sitting in the classroom

C．he wanted to get some money

The headmaster asked the students (who) (had completed) their tests (to leave) the classroom as (quieter) as possible.

A．who

B．had completed

C．to leave

D．quieter