Can the scientist ______ [iks'plein] the reasons for changing the plan?
| A．explain | B．experience | C．explore | D．expensive |
I ________you yesterday afternoon，but you ________at home.
| A．call，aren’t | B．am calling，aren’t |
| C．called，were | D．called，weren’t |
I have quite friends. I feel very happy.
| A．few | B．a few | C．little | D．a little |
Do you enjoy ________ photos?
| A．to take | B．take | C．taking | D．takes |
— Did you go fishing with yesterday?—Yes, I went with my father.
| A．someone | B．anyone |
| C．no one | D．everyone |
---How many arms _____ there? ----There _____ an arm.
A. are, are B. is, is C. are, is