1. A: What ____ he _____ (do)? B: He is sitting at his desk.
is (he) doing
2. Listen, someone ________ at the door. (knock)
is knocking
3. On my way home I usually _______ to drink a cup of coffee. (stop)
stop
4. Architects _______ plans of the buildings. (make)
make
5. Look at Betty: she _______ the piano. (play)
is playing
6. At this moment I ________ my students' exercises. (correct)
am correcting
7. She _______ much money. (not earn)
doesn't earn
8. Chris ________ near the table. (stand)
is standing
9. We _______ tea for breakfast. (not take)
don't take
10. I must run home, my mother ________ for me. (wait)
is waiting
11. The telephone often _______ during supper. (ring)
rings
12. It _______ hard at the moment. (snow)
is snowing
13. A: What are you doing here? B: I ______ for my book. (look)
am looking
14. It ______ in autumn. (rain)
rains
15. Look, a man _______ across the street. (run)
is running
16. They usually ______ the ten o'clock bus. (catch)
catch
