–Do you want to go hiking with me this weekend?
--I’d love to. But I have to ________ my little brother at home.
| A．babysit | B．look over | C．look at | D．take care |
My cousin has _______ Project Green Hope since two months ago.
| A．joined | B．taken part in | C．been in the | D．been a member of |
This magazine ______ out _____ the morning of March 1st.
| A．came, in | B．came, on | C．was come, in | D．was come, on |
The old man was seen _______ in the park at 7:00 a.m. yesterday.
| A．exercise | B．exercised | C．to exercise | D．exercising |
______ a host of the show is really ___________.
| A．Being, a hard work | B．To be, hard work |
| C．Being, work hard | D．To be, hard-working |
--- Where is your mother?
--- She has ______ to Sichuan on business. She has ______ there four times recently.
| A．gone, gone | B．been, been | C．gone, been | D．been, gone |