The secretary has a lot of things to ________ in the office since she has been away for quite a few days.
The teacher tried to _______ him to stop using the mobile phone on the campus, but he wouldn’t listen.
He asked me ______________.
With a lot of homework _________last weekend, Tom didn’t go to the movies with his friends.
A number of students _____ absent today, the number of whom ________five.
________________, the experiment is sure to succeed.