Vă rog !!! Dau coroana !

Fill in the present perfect simple and the present perfect continous of the verva in brackets :

1) He................... (sell) rings and watches all week.
He ................ (sell) 10 rings and two watches.

2) She ...........(help) people to find the right book to borrow.
She......... (borrow) ten books și far.

3) He...... (perform) operations all day long.
He........ (perform) 2 operations in 4 hours.

4) She......... (fix) baking pipes since yesterday.
She....... (fix) two pipes so far.

5) He ........... (study) the planets since he finished University.
He....... (discover) two planets so far.

6) He....... (observe) people's behaviour.
He.......(see) 3 patients since morning.​