In the interrogative sentences simple verb is used. i mean whenever there is question mark in the simple present interrogative, nagetive sentences, verb form will not change. "can he cook?" is a question, then we have used simple cook. take a look in following example.. he runs does he run?

challenge

han

how do we support you?

at my place....

biography written by someone on himself.

CV means curriculum vitae. this consist your qualification, weakness, work experience, qualities, introduction etc. it used usually at job requirements.

grammatically correct...

just ignore it man...

"for" will be used where time is not fixed. like- 3 hours, 5 day, two years, 50 minutes. i have been doing my homework for three hours. she has been working for TCS for 3 years. since used when time is fixed. like- yesterday, tomorrow, 1990, 5'o clock, morning, evening? have been working on your project since morning?