Ex1: Connect each pair of sentences, using the conjunction or conjunctive adverb given in brackets:
1. The establishment of the club of Xoan singing in Phu Tho has brought new energy and strength. Villagers in these communcs give great contribution to the development of the clubs. (while)
2. Valentine Day is not very popular in Viet Nam. People in big cities send gifts on that day. (yet)
3. Flower buds and blossoms are the symbols for new beginning. These two distinctive flowers are widely sold and purchased during Tet. (because)
4. Homes are often cleaned and decorated before New Year's Eve. The kitchen needs to be cleaned before the 23rd night of the last month. (and)
5. Street vendors rush into the city center with peach trees on their bicycles. The streets look like moving pink forests. (when)