1 - I am (at) school.
2 - I would like to (be) there.
3 - What is (this)?
4 - I (have) a nice home.
5 - When will they (come)?
6 - Where are you (from)?
7 - It is his (or) hers.
8 - I had (one) sandwich.
9 - She (had) a good time.
10 - I came (by) bus.
11 - I know many (words).
12 - It was good (but) sweet.
13 - It was (not) what I wanted.
14 - (What) did you do?
15 - I ate it (all).
16 - We (were) with them.
17 - (We) are all going.
18- (When) will you arrive?
19 - It is (your) turn.
20 - I (can) go.