_______ the morning train, he would not have been late for the meeting.
A. Did the catch B. Should he catch
C. Has the caught D. Had he caught
We won’t start the work until all the preparations _________.
A. are being made B. will be made
C. have been made D. had been made
---I wonder how much you charge for your services.
---The first two are free _____ the third costs $ 30.
A. while B. wherever
C. whatever D. whoever
_________ a reply, he decided to write another letter to the personal manager about his job application.
A. Not receiving B. Receiving not
C. Not having received D. Having not received
A bright idea suddenly struck me _____ I could use the money I saved to help a poor student in the countryside.
A. whether B. which C. that D. what
Mary quickly closed the door of her room _________ her father could reach it to keep him out.
A. before B. when C. as D. while