Let's learn to use the problem we are facing now _______ a stepping-stone to future success.
| A．to | B．for | C．as | D．by |
-- Can you guess _________ the new Nike sports shoes?
-- Yes, Maybe he asked his grandpa to pay for them, I think.
| A．how he paid for | B．where he bought | C．when he paid for | D．why he bought |
-- The city of Wenzhou looks more and more beautiful.
-- Yes. That’s because lots of trees ______ every year.
| A．plant | B．are planting | C．are planted | D．have planted |
Our government is trying to search for the airplane has been missing for many days.
| A．what | B．that | C．who | D．why |
-- Mom, look at the kite. I made it alone.
-- Good job, Charlie. I’m _________ of you.
| A．tired | B．proud | C．sure | D．sick |
Though Lin Tao’s parents work in another city, he can ______ himself.
| A．look out of | B．take care of | C．catch up with | D．come up with |