Up till now we _______ four units and this will be the second time that we _______ a test.
—Where is Tom? — Well, he ______ you ______ here.Otherwise he would come down right now.
He got well-prepared for the job interview, for he couldn’t risk _______ the good opportunity.
---May I go and play with Tom this afternoon, mum? ---No.You can’t go out ______ your homework is being done.
Can you ______ what I say? Do you need more explanation?
It was at midnight ______ he got to his friend’s house.