According to Professor Johnson, we don’t have to read the book if we don’t want to, as it is ______.
A.worthwhile B.necessary C.optional D.serious
Dr. Rowan, ______ secretary resigned two weeks ago, has had to do all his own typing.
A.whose B.of whom C.of which D.which
—Shall I order a taxi for Sarah to go to the airport tonight?
—______. I’ll drive her there.
A.Have a try B.Don’t mention it C.Don’t bother D.Go ahead
______ us prepare for the exam, the teacher suggested reading through our notes.
A.To help B.Helped C.Helping D.Being helped
—Next time you visit Bob, remember to give him a call in advance.
—______. I will.
A.My pleasure B.No wonder C.Good point D.Never mind
—You are a great swimmer.
—Thanks. It’s because I ______ a lot these days.
A.have been practising B.was practising
C.would practise D.had practised
