All we have is 24 precious hours a day and therefore we shall waste ______

A. nothing          B. none     C. neither D. no one

The doctor’s dilemma was _____ he should tell the patient the truth.

A. whether        B. which    C. that       D. what

He ______ it on schedule, but somehow he fell behind.

A. must have done B. might finish

C. could have finished D. could finish

I ______ for Shanghai this Saturday, so I want to know when the earliest plane ______.

A. leave; takes off     B. am leaving; takes off

C. leave; is taking off        D. am leaving; is taking off

I’m very grateful to my high school teachers, without ______ help I wouldn’t be so excellent.

A. whom   B. their      C. which    D. whose

It is the bus driver who should ______ the safety of the passengers.

A. answer for    B. search for     C. stand for        D. go for

This kind of gel pen which ______ smoothly is quite popular with students.

A. is written       B. is writing        C. wrote    D. writes

These diagrams are especially helpful when we have a concrete problem ______ at hand.

A. be solved      B. to solve          C. solved   D. being solved

一"Peter, have you got your new flat furnished?

—Yes. I ______ some used furniture and it was a real bargain.

A. will buy          B. have bought C. bought  D. had bought

They are determined to go into the dark cave, ______ my warning of danger.

A. regardless of         B. because of    C. apart from     D. instead of