Question

Fill in the blanks using appropriate primary auxilliary verbs. Mention what function each perfoms.
1._____ he know how difficult that test is?
2._____ you decided that you want to be a doctor?
3.She speaks german fluently and ______ been to germany many times.

Answer 1

1) Does .... because it is in present simple tense.

2) Have .. . because it is in present perfect tense.

3) Has .... because it is in present perfect tense.