With new technology, pictures of underwater valleys can be taken color.
A. by B. for C. with D. in
The employment rate has continued to rise in big cities thanks to the efforts of the local govenments to increase .
A. then B. those C. it D. that
Sit down, Emma. You will only make yourself more tired, on you feet.
A. to keep B. keeping C. having kept D. to have kept
—Bob has gone to Califonia.
—Oh, can you tell me when he ?
A. has left B. left C. is leaving D. would leave
The shocking news made me realize terrible problems we would face.
A. what B. how C. that D. why
Maybe if I sicence, and not literature then, I would be able to give you more help.
A. studied B. would study C. had studied D. was studying