Using the correct tense of the verbs to complete the sentences

III. Using the correct tense of the verbs to complete the sentences. 

1.  Lan (eat)..............................................................dinner when his friend called.

2. She rarely (get) ............................................. home before six o'clock.

3. We (not/ begin) ............................... to study for the test yet.

4. They (see) .................................................................. this movie before.

5. My friend is a writer. She (write) .............................................. many books.