—Kathy and her sister are so alike.—I can’t tell one from ____.
_______ towards the suffering people that they made a trip to Yushu to help the trapped.
Our offer has put her in a _______ as to whether to stay at school for further education or get a job to support her family.
. The careless man received a ticket for speeding. He ___ so fast.
This is____ a difficult problem ____ all of us can't work it out.
Only when ____in the afternoon _____able to leave.