Simple form, Simple Past, Past Participle
Interruptions
Simple Past or Present Perfect
Specified or Unspecified Time
Which is correct?
100

eat, _____, _____

eat, ate, eaten

100

Yesterday, Time (walk) _____ along the road when he accidentally (drop) ____ his wallet.

was walking, dropped

100

This semester (begin) _____ in January.

began

100

Vin has already lost a lot of weight on his diet.

Unspecified

100

A. Chef Roger has cooked in this restaurant since 2014.

B. Chef Roger has been cooking in this restaurant since 2014.

C. Both

C

200

bring, _____, _____

bring, brought, brought

200

Lilly (fall) _____ asleep when she (try) _____ to read her grammar textbook.

fell, was trying

200

Nina (travel) _____ to Niagara Falls several times.

has traveled
200

I have never ridden in a hot air balloon.

Unspecified

200

A. The Smiths have owned their house for two years.

B. The Smiths have been owning their house for two years.

C.

A

300

shut, _____, _____

shut, shut, shut

300

The ship "Titanic" (cross) _____ the North Atlantic when it (sink) _____ in 1912.

was crossing, sank

300

Jin (complete/not) his science project yet.

has not completed

300

Gus survived a car accident seven years ago.

Specified

300

A. Will has thought about applying for a new job.

B. Will has been thinking about applying for a new job.

C. Both


C

400

see, _____, _____

see, saw, seen

400

Last night, lighting suddenly (strike) _____ when we (watch) _____ the baseball game.

struck, were watching

400

When he was eight years old, Mozart (write) _____ his first symphony.

wrote

400

Jane's parents gave her a bike on her fifth birthday.

Specified
400

A. Marta has written four books in her career as an author.

B. Martha has been writing four books in her career as an author.

C. Both

A