— Can you keep an eye on my bag, Tom? I just want to use the bathroom.

—____. It will be safe with me.

A．Go ahead         B．I think so          C．Not at all          D．You’re welcome

The warmth of ____sweater will of course be determined by the sort of ____wool used.

A．the, the           B．the, /             C．/, the             D．/,/

 It is only when the disease has progressed to the AIDS ____ a person begins to look sick.

A．which            B．what             C．who              D．that

 ____ late in the morning, Bob turned off the alarm.

A．To sleep          B．Sleeping          C．Sleep             D．Having slept

They also agree that it is the burning of more and more fossil fuels that has resulted ____ this increase in carbon dioxide.

A．from             B．of               C．in               D．to

He was so____ a key university that he would work until late into the night.

A．curious about      B．anxious about      C．desperate for      D．concerned about

 Children under six are not __________to school except those of extraordinary intelligence.

A．permitted         B．admitted          C．accepted          D．received

The trade union in this industry are ____ any reduction in wages.

A．objecting against    B．opposed to        C．reacted to         D．resisting against

 ____ volcanoes now for many years, I am still amazed at their beauty as well as their potential to cause great damage.

A．Studied           B．To study           C．Having studied      D．Studying

We made ____ clear when and where we ____ going to have the meeting.

A．that; are          B．it; are            C．it; were           D．that; were