PRESENT SIMPLE - AFFIRMATIVE

a) Revise the SPELLING RULES:

In verbs ending in consonant + y, the y becomes an i and then we add -es:

study - studies = estudiar
cry - cries = llorar
try - tries = intentar

In verbs ending in -o we add -es (pronounced /z/):

go - goes = ir
do - does = hacer

In verbs ending in sounds which are similar to /s/, we add -es (pronounced /Iz/):

pass - passes = pasar
please - pleases = complacer
crash - crashes = chocar / colgarse (un ordenador) o caerse (un servidor)
box - boxes = boxear
fish - fishes = pescar
freeze - freezes = congelar / colgarse (un programa)
teach - teaches = enseñar
dodge - dodges = esquivar

b) EXERCISE: choose the correct form of one of the verbs in brackets to fill in the gaps in these sentences.

1.- When a computer, an application or a program which _________ part of the operating system ________, it ________ functioning properly; often, after encountering an error, the program __________. (EXIT / CRASH / BE / STOP)

2.- The offending program often _________ to freeze or hang, until we ___________ a report with details of the crash. (GET / APPEAR)

3.- If the program __________ a critical part of the operating system kernel, the entire computer may crash. This ___________ different from a hang or freeze, where the application or OS __________ to run without obvious response to input. (CONTINUE / BE / BE)

4.- An application typically _________ when it __________ an operation which _________ not allowed by the operating system. (CRASH / BE / PERFORM)

5.- An operating system crash commonly __________ when there _________ no solution for a hardware exception. (BE / OCCUR)

6.- Operating system crashes also _________ when the operating system _________ an internal sanity test. (OCCUR / FAIL) 

7.- A sanity test ___________ a quick check for common error in the results of calculations; if common errors __________ found, the test __________. (MAKE / FAIL / BE)

8.- Modern multi-tasking operating systems, such as Windows NT, Linux, or Mac OS X, usually _________ unharmed when an application program _________ (CRASH / REMAIN).

9.- When the software which _________ the server behind a website ___________, the server ___________ inaccessible entirely, or it __________ only an error message instead of normal content. (RUN / PROVIDE / BECOME / CRASH)

10.- We ________ this a server crash. (CALL)