The teacher ______ several times, but he still didn’t understand it.
| A．explained John the sentence | B．explained the sentence for John |
| C．explained to John the sentence | D．explained about the sentence to John |
The photo brought me back to the memory of the time in Qingdao, _________ I spent my summer holiday by the seaside with my friends.
| A．that | B．when | C．which | D．what |
Friends are like leaves, _________ everywhere, but true friends are like diamonds, precious and rare.
| A．to find | B．finding | C．found | D．being found |
Robert Collier once said, “A single idea——the sudden flash of a thought—— _________ be worth a million dollars.”
A. should B. may C. must D, will
--Who is making so much noise in the garden?
--_________ the children.
| A．There are | B．They are | C．That is | D．It is |
--You can’t imagine _________ fantastic fun web chatting is.
--Really? But it may cause a lot of trouble sometimes.
| A．what | B．how | C．why | D．whether |