The Old Town of Lijiang is __________ with tourists for its beautiful old buildings.

Our hometown is getting more and more beautiful. –So it is. Many trees on the hill every year.

What makes us worried is that the number of people______to drug is ________.

I feel necessary to accept his advice because it’s of great to me.

the methods of introducingforeign genes into a plant is to make use of certainsoil bacteria to infect the plant andtransfer several of blue genes to the infected plantcells, _____ in high rate of plant cellpision.