One way _____ this problem ______ search for some information on the Internet.
| A．solve; is to | B．to solve; is to | C．to solve; is | D．solve; is |
Simon is very confident. He isn’t afraid of ______ in the whole school.
| A．make a speech | B．making a speech | C．makes a speech | D．made a speech |
Mr. Wu___this math problem____him many times, but he still doesn’t understand it.
| A．explains ; to | B．has explained ; for | C．has explained ; to | D．explained ; with |
Bob doesn’t know ________ to write about.
| A．how | B．that | C．what | D．Where |
--How many students have passed the examination? -- _______.
| A．No one | B．None | C．Nobody | D．Nothing |