—Each boy and each girl talking about optional courses(选修课).—Yes! And they each their favorite one!
The letter reminded me _______ the good time we had spent together.
They got lost in the desert and starved _____ death.
—Shall I give you a ride as you live so far away? —Thank you. _______
After _____ independence in 1821, the country was left in a poor state.
The spy caught ______ the military base was sentenced to 20 years in prison and was limited ______ no relative visiting.