—This physics problem is too difficult. Can you show me _______, George?
—Sure.
| A．what to work out | B．to work it out | C．how to work it out | D．how to work out it |
My sister is a clerk. works in a bank near here.
| A．She | B．He | C．I | D．You |
—Who’s your English teacher?
—Miss Gao.She teachesEnglish very well.
| A．our | B．us | C．ours | D．we |
—Thank youyour great help.
—You are.
| A．for;welcome | B．to;right |
| C．of;great | D．of;right |
—Your pictures are very nice.
— .
| A．You are right | B．Thank you |
| C．You are OK | D．That’s OK |
—Where is my football?
—It’sthe tablethe floor.
| A．on;under | B．on;on |
| C．under;under | D．under;on |