We’ve had a burglar alarm installed in our holiday cottage _______we will feel happier about leaving it unoccupied for long periods

A. Hardly had the play started when there was a power failure

B. No earlier had the play started than there was a power failure

C. Hardly did the play start then there was a power failure

D. No sooner did the play start before there was a power failure

A. mouth 

B. ear 

C. eye 

D. hand 

A. The professor told his student that he wished he could finish the pre-lab report before carrying out the experiment

B. The professor advised his student to try to finish the pre-lab report before carrying out the experiment

C. The professor complained that his student didn’t finish the pre-lab report before carrying out the experiment

D. The professor regretted that his student didn't try to finish the pre-lab report before carrying out the experiment

A. with 

B. to 

C. for 

D. at 

A. revealing the financial problems 

B. solving financial problems 

C. causing the financial problems 

D. concealing the financial problems

A. laborious 

B. strenuous 

C. arduous 

D. synchronous