It’s reported that it’ll be rainy today. Remember to take ________ umbrella with you, Cindy.
a
an
the
You’d better ________. It’s bad for your eyes.
It’s difficult ______ this work today.
He speaks English ______ than any other student in his class.
If it ____ tomorrow, we will have a picnic in the park.
Don’t forget _____ the door when you leave.