We noticed that each animal and each tree in the park _____ being taken good care of.
| A．are | B．is | C．were | D．was |
— How long have you been here？
— ______ the end of last month，
| A．In | B．By | C．At | D．Since |
I like swimming，while what my brother enjoys ______.
| A．cooking | B．to cook | C．is cooking | D．cook |
We’ll be free tomorrow，so I suggest ______ to the history museum.
| A．to visit | B．visiting | C．we should visit | D．a visit |
Who would you rather ______ you repair your CD player?
| A．help | B．helped | C．helping | D．to help |
He will tell you _____ he expects will win such a match.
| A．why | B．whom | C．which | D．who |