It is hard to imagine more embarrassing occasion when you fail to understand single word said by someone．
| A．the; a | B．a; a | C．the; / | D．a; / |
Scarcely ________ ourselves in the theatre when the curtain ______ up.
| A．had we seated; went | B．we had seated; went |
| C．seated; had gone | D．did we seated; had gone |
The study of natural history is not something to be left to biologists. In fact, their capacity _____ the time they can spend away from their offices is very limited.
| A．in search of | B．in face of | C．in favour of | D．in terms of |
Nobody but doctors and those _______ by Dr Smith ______ to enter the patient’s room.
| A．invited; is allowed | B．invited; are allowed |
| C．being invited; is allowed | D．being invited; are allowed |
It is amazing that the little boy can swim ________the river ________100 meters in width.
| A．across; measuring | B．over; measured |
| C．across; measure | D．through; measuring |
According to the recent research, heavy coffee drinking and heart attack is not necessarily ______ and effect.
| A．reason | B．influence | C．fact | D．cause |