—I'm sure Andrew will win the first prize in the final.—I think so.He ________ for it for months.
The parents felt helpless when they found their son ______ drugs.
To keep fit, you should take more______ . Don’t be always busy doing your ______.
Was it her fluent English at the job interview _______ impressed the manager?
I think you should end it _______ it’s too late, or you may be sorry about it later.
The doctor could ______ by the symptom that the patient caught flu.