— I wonder ___________.
I'm afraid we'll be late.
| A．how we can be on time |
| B．what we are going to do |
| C．why we get to school late |
| D．if we will arrive at the meeting on time. |
Our teacher told us that light _____ much faster than sound.
| A．traveled | B．travels | C．is traveling | D．was traveling |
In our class _____ of the students _____boys.
| A．third fifths; is | B．third fifth; are | C．three fifth; is | D．three fifths; are |
—_____ you _____ your homework yet?
—Yes, I _____ it ten minutes ago.
| A．Did ; do; finished | B．Have; done; have finished |
| C．Have; done; finished | D．Will; do; finish |
It’s necessary for you _____ exercise every day.
| A．taking | B．to take | C．take | D．takes |
—Could you tell me _____?
—Sorry, I don’t know.
| A．where are my socks | B．where can I find my socks |
| C．where my socks are | D．where my socks put |