3) Leo has forgotten (forget) to invite his friends.
4) How many languages has Katherine learnt (learn) so far?
5) The baby has eaten (eat) nothing since morning.
6) What has Mrs. Parker taught to her students at school lately? (teach)
7) I haven't seen ( not see) a good movie for a long time.
8) Has Marta already called you? (call)
9) Oh my Goodness! Somebody has broken into (break into) my house.
10) Sandra has never taken (never / take) a part in any competitions before.
11) I have already passed (already / pass) all my exams.
12) Where have you been? (be)
13) Since yesterday Thomas hasn't said (not say) a word.
14) My son and I haven't gone (not go) fishing for a long time.
15) How have Edward and Olivia done their homework?
16) For two years, Pamela has worked (work) as a secretary.
17) Uncle Frank has been (be) to London many times but he hasn't been (not be) to Manchester before.
18) I have shared (share) the same desk with my best friend for five years.
19) Have you noticed (notice) the color of the walls?
20) Has she baked (bake) a delicious apple pie yet?
21) The kids have just completed (just/complete) their assignment.
