He started to learn English in 1990 and in the years ________ he kept on using it in his work.
It has been proved __________ eating vegetables in childhood helps to protect you against serious illnesses in later life.
She is working hard allday long, which will surely __________ her success in her future work.
—What do you think of David?— Very good. Healways keeps hispromise. You can quite __________ him.
I'll lend you my car __________ you return it in time.
At least twenty people were injured in the car accident, three children __________.