When I attended a meeting in Beijing I ___ my old teacher’s house.
| A．called on | B．called at | C．visited at | D．visited on |
_______ from toothaches for some time, he had to go to hospital for an examination.
| A．Suffered | B．Being suffered |
| C．Suffering | D．Having suffered |
With no penny ______ in his pocket, he was driven out of the rented house, ______ where to go.
| A．left; knowing not | B．left; not knowing |
| C．leaving; not knew | D．to leave; not knowing |
There is no doubt ______ they will finish the task on time.
| A．that | B．whether |
| C．when | D．how |
The prices of daily goods are rising, so we have to ______ everyday expense.
| A．cut back on | B．hold on to |
| C．look back on | D．keep up with |
I’d appreciate ______ if you would help me finish the task.
| A．that | B．this |
| C．it | D．you |