Mary and Linda ________ good friends.
If you don’t understand the word, you can ________ in a dictionary.
–Did Tom know ________?--I’m not sure.
He was ________ weak ________ he couldn’t go on working.
–Would you mind if I sit here?--________. The seats are for the VIPs, not for the students.
________ weather it is! We can’t go out to have a picnic.