---My computer doesn’t work. ---You can ask_____ to check it.
| A．a waiter | B．a cook |
| C．a doctor | D．an engineer |
We can’t do well in examination _________ we study hard in school time.
| A．if | B．and | C．since | D．unless |
We still couldn’t decide _________ with our difficulties in learning English.
| A．how to do | B．how to deal |
| C．what to deal | D．what to solve |
He speaks too quickly_________.
| A．understand | B．write them down |
| C．to understand | D．and write |
If you have questions,you should ask the teacher _________help.
| A．from | B．on | C．for | D．to |
This is the best hour I can _________ I_________ in the past twelve years.
| A．know;have had | B．remember;had |
| C．think of;have had | D．think out;had |