Jack has been feeling down recently . I wonder that is making him so upset .
A .what is it B . why is it C . why it is D . what it is
.Shortly after we .the chairman took his place and declared the meeting open .
A . sat ourselves B . seated down C . were seated D . seated
They believed that production in their factory by bringing in the latest equipment from abroad .
A . will greatly increase B . would be greatly increased
C . has greatly increased D . had been greatly increased
We will have to overcome difficulties we might meet and finish the work ahead of time .
A . no matter how B . no matter what C . however D . whatever
Mr .Smith is from Australia , which is to many unique animal species ,like kangaroos and koala bears .
A .family B .nation C . home D . area
. It is reported that a bus rolled into a
deep valley , 10
deaths and even more injuries . 
A . to cause B . having caused C . caused D . causing
