The global warming is more and more serious, for which human beings ______．

       A．are blaming                B．are to blame 

       C．are going to blame        D．are to be blamed

It was at midnight ______ he got to his friend’s house．

       A．when B．since　    C．that　      D．while

Can you ______ what I say? Do you need more explanation?

       A．make sense of         B．put an end to  

       C．attend to                D．leave alone

---May I go and play with Tom this afternoon, mum?

       ---No．You can’t go out ______ your homework is being done．

       A．until        B．after  C．before      D．as

He got well-prepared for the job interview, for he couldn’t risk _______ the good opportunity．

       A．to lose        B．losing         C．to be lost            D．being lost

—Where is Tom?

       — Well, he ______ you ______ here．Otherwise he would come down right now．

       A．didn’t know; were               B．hasn’t known; are

       C．doesn’t know; are               D．hadn’t known; were

_____ will greatly decide their future, most senior 3 students think, is their grades．

     A．That  B．Which          C．What       D．As

The traffic is heavy these days．I ______ arrive a bit late, so could you save me a place?

       A．can   B．might       C．need  D．must

Ms．Zero was preparing food．Under one of the apple trees in the garden ______, smoking and looking at the harvest with a smile．

       A．stood her husband       B．did her husband stand

       C．her husband stood           D．her husband standing

David suddenly realized that the waiter was the same man _____ face he had seen in a painting many years ago．

       A．which       B．that   C．of whom   D．whose