— Look, it _____ be Jack who is at the gate of the library.
It _____ be him. He has gone abroad.
may; must B. must; mayn’t C. must; can’t D. can; mayn’t
An immediate Interest cut might contribute to economy.______ any recovery is likely to be very slow.
| A．Even though | B．Even so | C．If so | D．If ever |
Nowadavs,most people,in order to keep fit,prefer walking to driving _________necessary.
| A．if | B．unless | C．in case | D．as if |
Out of the crowded bus ____________ , who was dressde in a black suit and waved to a woman.
| A．a tall man in his thirties stepped |
| B．stepped a tall man in his thirties |
| C．did a tall man is his thirties step |
| D．did a tall man step in his thirties |
__________ the zoologists tried to prove was that the photo of the South Chha Tiger had been staged or technologically dealt with.
| A．That | B．Why | C．Whether | D．What |
In the clinic the doctor gave me a (n) ___________ for anti-H1N1 flu.
| A．indication | B．prescription |
| C．direction | D．reservation |