The students how to do the experiment in class yesterday.
| A．were taught | B．better | C．was taught | D．teach |
_______ we have learned about 2000 English words.
A. At first B. After allC. So far
Can you tell me _____ there are any good museums in the city?
A. ifB. unlessC. although
E-mail English _____ uses two types of words.
A. mainlyB. stronglyC. gradually
The water in the lakes and rivers in Shandong becomes ______ because of the dry weather .
A. less and lessB. more and moreC. fewer and fewer
David ______ his friend’s invitation in order to stay at home and have a good rest.
A. expected B. refusedC. received