The students should have done the assignment.

A. She has been interviewed for the job.

B. She was being interviewed for the job

C. She was interviewed for the job.

D. She was interviewing for the job.

A. Dan left right after to see all the paintings.

B. Dan left all the paintings after seeing them.

C. Right after seeing all the paintings, he left

D. He left and then saw the paintings right after.

A. English has been understood by everyone.

B. English is understood by every one

C. English was being understood by everyone.

D. English was understood by everyone.

A. The password may be forgot.

B. The password may be forgotten.

C. The password may been forgot.

D. The password may have been forgotten.

A. I am surprised by this

B. I was surprised by this.

C. I will be surprised by this.

D. I would have been surprised by this.

A. If he had tried his best, he could have won the biggest prize.

B. Unless he tried his best, he couldn’t win the biggest prize.

C. Although he tried his best, he still won the biggest prize.