The old couple decided to ______ a boy and a girl though they had three of their own.
----Do you mind if I use your bike? ----______.
It was the first time that I ____the sports meeting with so large an audience
Have you seen Tom recently? I wonder ____ with his studies.
Lily has been in love with Tom ___ since she met him last year.
Students should form the habit of ____ everything important in class. Which of the following can’t be put in the blank?