Left ____ in the reading room alone quite by accident, the boy felt nervous.
A. locking B. having locked
C. to lock D. locked
I _____ to my cousin’s birthday party last night, but I was not available.
A. went B. had gone
C. would have gone D. would go
It was a pity that the policeman failed to find such a person ____ had been
described by the witness.
A. that B. what C. as D. which
Focused on, in my opinion, ____ your heart asks you to do, you will realize your dream one day.
A. that B what C. which D. how
---- Mary, correct the mistakes in your homework, will you?
---- _____.
A. I don’t know B. If any
C. Thank you D. Go ahead
He transplanted the little tree to the garden ____ it was the best time for it.
A. when B. that C. until D. where
