Question

bserve the underlined verbs in the sentences below and match the two columns.

( ) Dr. Parsons and his colleagues began with another aim.

( ) But while the researchers were watching these rats,…

( ) So they`ve seen their cat bring back a mouse,…

( ) A lot of people confuse rats with mice

( ) Predation will not reduce the rat population

1 Simple future

2 Simple present

3 Present Perfect

4 Simple past

5 Past Progressive or Continuous

Answer 1

(4) Dr. Parsons and his colleagues began with another aim.

(5) But while the researchers were watching these rats,…

(3) So they've seen their cat bring back a mouse,…

(2) A lot of people confuse rats with mice

(1) Predation will not reduce the rat population