(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
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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
Alice went to France hoping to find a teaching ______ without too much difficulty.
A. work
B. career
C. post
D. employment