33When a student asks_________it is worth staying up doing their lessons, a teacher may find it difficult to answer

“May I speak to your manager Mr Williams at five o’clocktonight”— “I’m sorry Mr Williams ________ to a conference by then”

You’ve switched the machine off. I told you not to,_____?

The firemen did all their best to put out the fire.— excellent firemen!

He insisted on going abroad to have further study____his parents’ objection.[ ]