他为父母感到自豪。不久前他们志愿参加了抗击新冠病毒的战役。

He is ________ ________ his parents. Both of them volunteered to ________ ________ in the battle against COVID-19 not long ago.

电视节目《最强大脑》不仅励志而且有趣，非常值得观看。

The TV program Super Brain is ________ _________ encouraging but also interesting. It is well_______ ________.

与在湖里游泳相比，我更喜欢乘船游览仙岛湖。我认为在湖里游泳不安全。

I ________ taking a boat trip on the Xiandao Lake ________ swimming in it. I don’t think ________ ________ safe to swim in a lake.

你房间的灯还亮着。你离开之前不要忘记把它们关掉。

The lights in your room are still on. Don’t forget _________ _________ __________ _________ before you leave.

这对双胞胎兄弟有一个共同点：面临困难时他们从不轻易放弃。

The twin brothers have one thing _________ _________: they never _________ __________ easily when they face difficulties.

The more careful you are, the fewer________（错误）you'll make.

It is very noisy outside and we________（想知道）what has happened.

What were you doing when the heavy rain________（突然地）came?

There aren’t enough books for each student. Some of them have to s________ with one another.

The poor boy hasn’t eaten anything for a whole day. He is very h_________.