Though we found _____difficult to avoid economic and financial crisis, we must take measures to reduce its negative impact.
| A．it | B．one | C．that | D．how |
When we practice speaking English, we often end up _____ in Chinese.
| A．to speak | B．speaking | C．spoken | D．speak |
----_____do you improve your listening?
----I improve it ______ listening to tapes.
A. How; with B: What; withC: How; by D. What; by
He ______ be a history teacher.
| A．used to | B．be used to | C．use to be | D．be use to |
Most of the students near______ Arthur was sitting appeared to be taking notes．So Arthur pretended to do the same．
| A．which | B．that | C．whom | D．where |
—We’d better_______ if we want to be on time．
—OK．
| A．sweep up | B．use up | C．speed up | D．set up |