Alexander Graham Bell invented ___ telephone in 1876.
| A．/ | B．a | C．the | D．one |
----Mr. Li told me once he had a fall and broke his leg .
----_______was that.
A Since when B For how long C How long ago D How soon
This is an illness that can result in total blindness ____left untreated.
A after B if C since D unless
Mum wrote to me every week ,_____she was too busy with her teaching work .
A if B even C unless D when
____ is always right.
A No matter what you say B Whatever you say
C No matter how you say D However you say
The machine can only do _____man asks it to do .
A how B after C what D when