71. After all, not even _____ speakers of English find it easy to do some reading aloud correctly in RP(Received Pronunciation).
| A．national | B．native | C．natural | D．non-stop |
In order to in a short time, the actress ate a large amount of food
much fat and protein(蛋白质).
| A．put on weight; contained | B．put on weight; containing |
| C．lose weight; containing | D．lose weight; contained |
It seems ________ our team is going to win.
| A．even though | B．when | C．if | D．as if |
—How many practical plans has your deskmate made this week?
—. All have turned out disappointing.
| A．None | B．Nothing | C．Nobody | D．No |
The best times to visit Shangri-la are spring and autumn ____ the temperature is at its mildest.
| A．when | B．where | C．that | D．which |
Scientists study ____ human brains work to make computers.
| A．when | B．how | C．that | D．whether |