49. He is not backward. It is just that he has not studied( ). A. enough hard B. hard enough C. hardly enough D. enough hardly ...
34. Make sure you have that shirt( ) for next Monday. A. washed B. to wash C. washing D. wash ...
27. It is important that we ( ) more attention to the environmental protection. A. would pay B. pay C. to pay D. should have paid ...
24. It was such a big menu that I didn’t know( ) . A. to choose what B. choose what C. what to choose D. what it chooses ...
1. ( )of them think that is a good idea. A. Anyone B. No one C. None D. Someone ...
(单选题)2: There is a good reason to doubt that public school science has much influence ___ economic productivity. A: in B: on C: to D: towards ...
(单选题)24: It was unbelievable that the fans waited outside the gym for three hours just ____ a look at the sports stars. A: had B: having C: to have D: have ...
(单选题)18: The law requires that everyone ____ his car checked at least once a year. A: has B: had C: have D: must have ...
(单选题)17: —Are you sure that there was a rat around the trash cans? —If I hadn’t seen it myself, I ____ it.” A: could never believe B: never did believe C: would have never believed ...
(单选题)11: We wish that you ____ such a lot of work, because we know that you would have enjoyed the party. A: hadn't had B: hadn't C: didn't have had D: haven't had ...