----Can he work out the maths problem?
----I think _____ hard for him to work it out.
| A．it’s | B．that’s |
| C．this is | D．they’re |
—_________is very interesting to swim in the river in summer,but it’s dangerous.
| A．This | B．That | C．It | D．He |
－are my keys?
－ They are under the bed.
| A．Where | B．How | C．What | D．Who |
---Have you found your English book?
---No, I haven’t found ________, but I borrowed ________ from Jack this afternoon.
| A．it; one | B．one; that |
| C．one; it | D．that; one |
They found __________ impossible to finish so much work in such a short time.
| A．that | B．it | C．it is | D．this |
Thank you for your help, Linda. You made ________ possible for us to finish the work in time.
| A．this | B．it | C．them | D．that |
I don’t make ________ clear when and where the parents’ meeting will be held.
| A．this | B．that | C．those | D．it |
I don’t make ________ clear when and where the parents’ meeting will be held.
| A．this | B．that | C．those | D．it |
When you have borrowed a book from the library, you should keep it well, as if it were ______ of ______.
| A．that, yours | B．one, yours | C．that, you | D．one, you |
I think____ important to learn English well.
| A．this | B．that | C．it | D．you are |
Mum,my teacher（老师）, Mr. Wang．
A．she is B．this is C．here is
I think ______ is necessary ______ us to do something useful to protect the birds.
| A．this; for | B．it; of | C．this; of | D．it; for |
_________ my two sisters. And __________ my brother.
| A．This is, this is | B．These are, this is | C．These are, these are | D．This is, these are |
The twins are so much alike that it is difficult to tell one from________.
| A．other | B．the other | C．others | D．another |
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