______, Jack couldn’t get the door open. He had to dial 110.
It is very important for us to employ a word or a phrase according to the in language learning.
It was not until dark ___ he was aware of ___ he thought was the correct way to solve the problem.
We expected their house to be very large, but it is ___than ours.
Your teacher might find out about it.— ___? I’m doing nothing that breaks the rules.
It is reported that a new school has been built in___ was a deserted village a few decades ago.