---Has your father come back from Africa?
--- Yes, but he ______ here for only three days before his company 
sent him to Japan.
| A．was | B．has been | C．will be | D．would be |
The experienced teachers try their best _____ the younger ones _____experience.
| A．to help…getting | B．help…get |
| C．to help…to get | D．helping…get |
John is not a man to count on, and it is very likely that the work ____ by the time he arrives here.
| A．is finished | B．has finished | C．will finish | D．will have been finished |
Most probably it will be another 7 hours _____ you can have next meal, so each of you must have your stomach full.
| A．since | B．when | C．after | D．before |
Tony is a quiet boy and he is accustomed ______ at meals, which is always appreciated.
| A．not to talk | B．to not talk | C．to not talking | D．not to talking |
I stayed up late doing my homework yesterday, so I had trouble _____ up early this morning.
| A．get | B．getting | C．got | D．to get |