It is difficult______ me _______ English well. But I’ll study harder.
| A．to, learn | B．for, learning |
| C．for, to learn | D．to, to learn |
—Do you know who the pen ___? –Sorry,I don’t know.
| A．belong | B．belong to | C．belongs | D．belongs to |
The mobile phone has influenced people’s life a lot since it ____.
| A．invents | B．invented |
| C．has been invented | D．was invented |
--Merry Christmas! --______.
| A．I’m very happy | B．It’s very kind of you |
| C．Thanks.The same to you | D．My pleasure |
Now the transportation is convenient.It’s only____ ride from here to Beijing.
| A．two hours train | B．two- hours train |
| C．two-hour train | D．two- hour’s train |
He hardly gave his parents any problems,_____?
| A．does he | B．doesn’t he |
| C．did he | D．didn’t he |