Do you know the activity called “________ Lights” —Oh,it’s an activity that reminds people of saving energy.

The new books are for ______.

Why haven’t you asked her to come here?—She _______ an important experiment when I found her and she _____ it

It was my sister firsthad the idea to cycle along the entire Mekong River from ______ it began towhere it ends

I am very sleepy. I tried _______my eyes open, but I couldn’t.