The flowers her friend gave her will die unless________every day [ ]

Look out! Don’t get too close to the house _________ roof is under repair.

Look at the students in Grade 7, they look ______ cooler in military uniform(军服).— I agree with you, they look smart.

(2014·苏锡常镇四市调研)—How was your interview for going abroad to study?—Oh，I couldn’t feel any________.I hardly understood most of the questions they asked.

While the woman the accident happened.