Victims of carpal tunnel syndrome include electricians drilling holes for wiring, airline workers to type at chest- high terminals, and check- out clerks lifting and twisting groceries to register prices on the scanner.
A. include
B. for wiring
C.to type
D. to register prices
* Đáp án
* Hướng dẫn giải
Đáp án là C. to type => typing. Mệnh đề quan hệ rút gọn.