I owe my success to Mr. Smith, a teacher from America, ______ help I have greatly improved my oral English.
| A．by which | B．by whose | C．with his | D．with whose |
----Mike, the telephone is ringing.
---- I _ _ answer it.
A. will B am going to C. am toD. am about to
Lawrence Craven, a doctor from the USA, is the author of several published reports, one of _______ introduced the idea in 1953 _______ aspirin could reduce the risk of heart attacks.
| A．them; when | B．which; that | C．what; that | D．which; when |
---- Really? Who will give _________ lecture?
---- Mr. Wang, ________ professor from Nanjing University.
| A．the; 不填 | B．a; the | C．the; a | D．a; a |
The
weather in this area is generally warm，but it be very cold sometimes．
| A．must | B．can | C．should | D．need |
Not everyone is equal to the task because it special skills and much patience．
| A．calls for | B．calls out | C．turns into | D．turns up |