When you are _______ about which button to press on the complicated machine, you can either read the user’s guide for guidance or fax us for specific instruction. Don’t ______ the trial-and-error method.
| A．insure; do | B．ensure; make | C．uncertain; try | D．unsure; touch |
–Can I tell my best friend about it? –No, I don’t want anyone else to know. You ___ tell anyone.
| A．won’t | B．mustn’t | C．don’t have to | D．don’t need to |
It has been raining every day so far. I hope tomorrow will ___ fine.
| A．turn to | B．turn up | C．turn into | D．turn out |
Anyone seen carrying boxes, bags, or ___, was stopped by the police.
| A．no matter what | B．whatever | C．whichever | D．no matter which |
___ in t
he book he was reading on the way, the boy was almost knocked down by a car.
| A．Having absorbed | B．Being absorbed | C．Absorbed | D．To be absorbed |
Please put on more clothes. It is ___ that it will be a bit colder this afternoon.
| A．likely | B．sure | C．certainly | D．perhaps |