Welding Techniques and Present Perfect

Have you ever practiced GTAW?

• Yes, I practice GTAW.

• I am currently practicing GTAW.

• No, I have not practiced GTAW.

Has your instructor explained GMAW techniques?

• I have.

• The instructor have mentioned GMAW techniques.

• Yes, the instructor has explained GMAW techniques.

I have _________ a welding project this semester

• completed

• complete

• completing

We have ___ a TIG welder before.

• using

• used

• use

We __________ about safety measures in welding.

• have learned

• has learn

• have learn

The company ________ a welding workshop.

• has attended

• have attended

• attend

Our school ______ some welding equipment.

• have provide

• provided

• has provided

I ____ never ______ any welding demonstrations.

• have watched

• has watched

• did watched

The teacher _____ some articles about welding methods.

• has read

• havent read

• read

I ________ welding with my classmates.

• have discussed

• discussed

• has discussed