—It’s reported that the new underground line has been completed. —Yes, but it hasn’t been made clear it’s to be opened to traffic.
Visitors to the National Museum can avoid long lines at the ticket booths by purchasing tickets ____.
She told me that she would not go with us if it ____ the next day.
I know one of the things I was unsure about was _____ hard it would be to climb this mountain.
Some researchers are finding that daydreaming may be important to ______ mental health and it is ______ good means of relaxation.
------Have you packed for your adventure holiday? ------Oh, almost, but I still need a flashlight _____I will be able to see in the dark.