Fill in the blanks with the appropriate form of the verb given in the brackets. Note that the forms of be are: is, am, are, was and were. The forms of have are: has, have and had.

Employees at a growing number of organizations today …………………….. (start) and end their days by pressing a hand or finger to a scanner that ……………………. (log) the precise time of their arrival and departure. Manufacturers say these biometric devices …………………… (improve) efficiency and streamline payroll operations.

A fingerprint reader …………………… (scan) users’ fingerprints and ………………….. (use) the information to control access to a PC, office building or network. Fingerprint ID technology can be ………………… (use) instead of passwords or in addition to them.

Fingerprint readers …………………. (come) with software that ……………….. (enable) them do what they are supposed to. Some fingerprint readers available today use a full scan of a fingerprint. Others scan and record unique details, or minutiae, of a given fingerprint. Both methods …………………….. (have) their own advantages and disadvantages. A full scan …………………….. (have) more detail, but it also …………………… (produce) a digital image of about 120K, which can slow things down. Minutiae images …………………….. (consist) of about 8 bytes but …………………. (do) not have nearly the same level of detail.

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