The soldiers have devoted s11 their time and effort to those trapped
under the fallen buildings．
| A．save | B．have saved | C．be saving | D．saving |
Tom ____ be ill, for I saw him playing basketball an hour ago.
| A．mustn’t | B．needn’t | C．can’t | D．may not |
It doesn’t _____ to set off fireworks on holidays since the smog(雾霾) is so severe at present.
| A．make a difference | B．make sense | C．make progress | D．make a choice |
Two years ago, she bought an expensive mountain bike and then she persuaded me to buy ___.
| A．this | B．that | C．it | D．one |
He is such ____ social failure that many colleagues don’t like him.
| A．the | B．an | C．a | D．不填 |
The speaker was very good at describing feelings. The __________ of his words moved every listener.
| A．power | B．quality | C．opinion | D．influence |