There were signs here and there, _____ people to look out for ___rocks.
| A．warned; fallen | B．warning; fallen | C．warning; falling | D．warned; falling |
．I will do what I can_________ the people in trouble .
| A．help | B．to help | C．help | D．helped |
The teacher told us that water_________at 100℃ .
| A．is boiled | B．boiled | C．was boiled | D．boils |
．It was three o’clock_________we finished the work .
A．wh ere |
B．by which | C．when | D．since |
—Which do you like , tea or coffee ?
—_____________.
| A．I like it very much | B．Yes , I like coffee |
| C．Tea , please | D．Thank you |
___________our teacher gave us !
| A．How a good advice | B．How good advice |
| C．What a good advice | D．What good advice |