Exercise

1. I                                dinner when the visitors arrived.

   A. were having

   B. was having

   C. were had

   D. was had

2. Julia                              her homework at 8pm.

   A. was doing

   B. were doing

   C. was done

   D. were done

3. You                              when I arrived just now.

   A. are sleeping

   B. is sleeping

   C. were sleeping

   D. was sleeping

4. The cat                                milk when the dog approached.
   A. was drinking

   B. were drinking

   C. is drinking

   D. are drinking

5. The students                                noise before the teacher entered the class.

   A. has made

   B. have made

   C. was making

   D. were making

6. My friends                               tennis at 3 o’clock last Tuesday.

   A. was played

   B. were played

   C. was playing

   D. were playing