－Have you known Dr Jackson for a long time?
－Yes，since she the Chinese Society．
| A．has joined | B．joins | C．had joined | D．joined |
_______will Mr. Black be able to regain control of the company.
| A．Only by working hard | B．Only he works hard |
| C．With hard work | D．Only if work hard |
This type of computer is of great help and I’ll buy it _______.
| A．however may it cost | B．no matter how much it cost |
| C．however much it is cost | D．however much it may cost |
______ this new style of hat---maybe you will find it suitable for you.
| A．Having tried | B．Trying | C．Try | D．To try |
The train _______ at the present speed until it reaches Beijing at about 6 :30 am.
| A．went | B．has gone | C．goes | D．will be going |
Mary and I took a taxi to school last Monday and we shared the _______.
| A．money | B．fine | C．receipt | D．fare |