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.

When he heard his lost son’s voice, Mr Brown______ believe his_______.

Nobody would like to go outIt is freezing cold outside, and ________ that, it is likely to snow.[ ]

______ is it that metals plays such an important part in our daily life?

Tony, _____ his father, _____ playing football.