The villagers, ______ were very happy when they saw the film for the first time.
A. in the mountain depths
B. in the mountain deeply
C. in the depths of the mountain
D. in the mountain deep
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(Those of us) who work in chemical (laboratories), should have (their) lungs (checked) quite regularly.
A. Those of us
B. laboratories
C. their
D. checked
Stressful environments lead to unhealthy such as poor eating habits, which______increase the risk of heart disease.
A. in turn
B. in return
C. by chance
D. by turns
An agreement has been nailed ______ recently by the partners of the company.
A. down
B. up
C. in
D. on
Sorry, there are no tickets ______for Sunday's performance.
A. preferable
B. considerable
C. possible
D. available