The flu is believed ______ by viruses that like to reproduce in the cells inside the human nose and throat.
#90948
A
to be caused
B
to have caused
C
being caused
D
causing
推荐题目
How many times have you found yourself arriving at school to start your day, only ________ that you left your homework at home?
#96532
A
having discovered
B
discovering
C
to discover
D
Discover
--- Could you introduce me a high quality car?--- My pleasure. ____ well even on wet roads, this kind of car is very popular.
#98806
A
Handled
B
To handle
C
Handling
D
Being handled
The American tourist hurried to the museum, only ________ that the train had pulled out of the station．
#95360
A
telling
B
to tell
C
to be told
D
having been told
Which do you enjoy___your spare time, go shopping or watching TV at home?
#97132
A
spending
B
being spent
C
to spend
D
spent