Remember to give me a call ______ you arrive in Beijing.
| A．as soon as | B．as if | C．since | D．even if |
—Who is making so much noise in the garden?
—____ the children.
| A．There are | B．They are | C．That is | D．It is |
____ friend of my grandfather’s will come tomorrow. I’m wondering how old ____ man he might be.
| A．The; a | B．The; the | C．A; a | D．A; the |
—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．so |
There aren’t many seats left for the concert; you had better make sure ____ two today.
| A．getting | B．to have got | C．that you get | D．that you will get |
Examination compositions, together with most business letters and government reports, are the main situations ____ formal language is used.
| A．in which | B．on which | C．of which | D．for which |