Excuse me.I ________ I was blocking your way.
To show our respect, we usually take our gloves off _______ we are to shake hands with.
To understand the complex situation completely requires more thought than ________ so far.
According to some theories ________ from psychoanalysis, life is supposedly easier; and more pleasant when anxiety is overcome.
All the ladies wear beautiful clothes for the celebration. Some are dressed in red, _______ in purple.
Keeping a foreign pet is dangerous, as the owner might be infected ________ the diseases brought along with the animal.