My father ( play ) ......plays.................... tennis with his friend on Sundays 
2. Fashion designers ( print ) .......have printed................ lines of poetry on the ao dai, haven't they?
3. Traffic rules should ( obey ) ........be obey................. strictly by roads users
4. Would you like ( donate ) .....to donate......................... old books and toys to needy childern?
5. Most students enjoy going ( picnic ) ..........to picnic.............. when they have one Saturday off
6. In Russia, ( beauty ) .......beautiful ........................ painted and decorated eggs are offered as gifts
7. When cycling on the roads, remember: ( safe ) .....safety....................... first.
8. In order to keep our environment ( pollute) ....polluted......................., we shouldn't drop litter in public places