People are living in ___ world where mouse clicks rule our life, so online searches have become _____ must．
| A．the; / | B．/; a | C．a; a | D．a; the |
I can’t get my car__________on cold mornings，so I have to try__________the radiator with some hot water.
| A．run；to fill | B．running；filling |
| C．running；to fill | D．ran；filling |
—Is Tom a good talker?
—No，he never speaks to me other than__________something?
| A．ask for | B．to ask for | C．asked for | D．asking for |
Standing on the top of the hill，I would not do anything but__________the flowing of the smog around me.
| A．enjoy | B．enjoying | C．enjoyed | D．to enjoy |
I was afraid__________to my customers because I was afraid__________them.
| A．of talking back；to lose | B．of talking back；of losing |
| C．to talk back；to lose | D．to talk back；of losing |
—What caused the party to be put off?
—__________ the invitations.
| A．Tom delayed sending | B．Tom’s delaying sending |
| C．Tom delaying to send | D．Tom delayed to send |