1) He usually (goes) to school by bus, but today he (is walking) to school. 2) Listen! The birds (is singing). They always (sing) in the morning. 3) What (are you / doing)? Do you
always (work) like that? 4) I (do not / swim) in this lake! It (is) far
too cold. 5) Peter (has just / eaten) his school dinner, but I (think) school
dinners (taste) horrible. 6) The girls often (do) their homework
together, but today they (are not / doing) their homework properly! 7) I
sometimes (go) for a walk in the afternoons, but today I (am working) instead.
8) Christiana always (feeds) her cows in the morning, but Tim (is feeding)
them today. 9) Look! (Isn't ) that Sarah? She (is just / going) into the
cinema with her boyfriend. 10) Dad (does not / know) that Tom (has run) in a
marathon today. He will be surprised.
1. T
2. F
3. T
4. T
5. T
6. T
7. F
8. F
9. F
10. T
7-a
8-a
9-b
10-c
11-e
12-e
13-c