_______ time and labor, cartoonists generally draw the hands of their characters with only 3 fingers and a thumb.
| A．Save | B．Having saved | C．Saving | D．To save |
Mr．Jones was so late that his dinner got cold; his wife ______ warm it up．
| A．must | B．had to | C．ought to | D．might |
---- Tom must have been in his girlfriend’s house on Christmas Eve, ________?
----- ___________．He was seeing a film all night long with us ．
| A．mustn’t he；Yes ; | B．wasn’t he， No ; |
| C．hasn’t he；Yes; | D．didn’t he；No; |
--- How much do I owe you for lunch?
--- ．It’s nothing.
| A．You’re welcome | B．Forget it |
| C．With pleasure | D．That’s right |
Is some German friends visited last week?
| A．this school | B．this the school |
| C．this school one | D．this school where |
that they may eventually reduce the amount of labor needed on construction sites by 90 percent．
| A．Such construction robots are clever |
| B．So clever the construction robots are |
| C．Such clever construction robots are |
| D．So clever are the construction robots |