1. I did (do) all the housework

1.  I did (do)  all the housework. The flat is really clean now.

     2.  He (write) ................................... a novel for two years.

     3.  I (never meet) ................................... this girl before.

     4.  My brother (leave) ................................... home for 10 years.

     5.  I (not see) ................................... my close friend since 2013.

     6.  My mother (buy) ................................... this bike since last week.

     7.  Peter (never see) ................................... a zebra before.

     8.  Nga (be) ................................... to England for 3 days.

     9.  They (travel) ................................... around the world once.

     10. The teacher (tell) ................................... this story three times.