China began to open to the outside world in the late 1970s. _________, there have been great changes in the country.
| A．By then | B．As a result | C． At last | D．In all |
Don 't be, Alice. Your father is sleeping now.
| A．quiet | B．noisy |
| C．dirty | D．clean |
me, it' s easy to get to school on time.
| A．To | B．For | C．Of | D．With |
We all like Mr. Black he'is very fun.
| A．so | B．and |
| C．but | D．because |
Kate is watching a music show TV.
| A．on | B．at |
| C．in | D．with |
I have guitar, but I can't play____guitar well.
| A．the; the | B．a; a |
| C．the; a | D．a ; the |