Parents should pay attention to areas _______ their child is having difficulty and spend extra time to help him or her master those skills

We may find that learning a foreign language does not have to be________learning our mother tongue，but can in fact be twice ________

Is he the only one of the students who ________ here just now?

_______ is it to your hometown from here— Well, it takes over two hours to get there by train.

They will try their best in the Dragon Boat Racing_______ they may fail.