There is no doubt,in my opinion, ________matters is not the speed,but the quality of the product.
—Look, here comes your dream girl. Invite her to dance.—__________ What if she refuses me?
There is little doubt in your mind that he is innocent,__________?
—What did he come here for?—He came here especially to __________ your acquaintance.
He went back to the hall to try his __________ at finding his lost gold watch, but never found it.
—Don't __________ your friends' trust, or you will lose friendship.—What you said is right.