.When he was young, he used to __________ hard at his lessons.

Hey! Mike, guess for my coming vacation. -To Hainan Island You always like somewhere interesting.

If he has_______, he will_______ his research.

Good morning, class. Today ____ are going to learn anew unit, Unit 12.

The weather isn’t good enough for an outing，is it-To much dust．We can’thave at this time of the year．