Don't forget to phone to let us know you arrived safely.

不要忘记打电话，告诉我们你已经安全抵达。

How much is this land per acre?

每英亩地要多少钱？

I often study in the morning.

我常常在早上读书。

I told him last Tuesday.

我上个星期二告诉他。

I'm going to take four boxes.

我要拿四盒。

My hobby is collecting stamps.

我的嗜好是收集邮票。