---What are you busy with ?
--- We are carrying out a research ____ the causes of cancer.
| A．into | B．onto | C．to | D．in |
The person we talked about ____ our school last week．
| A．visiting | B．will visit | C．visited | D．has visited |
He is a strict but kind-hearted father, ____ the children respect but are afraid of.
| A．/ | B．that | C．for whom | D．one whom |
The days we have been looking forward to ____ soon．
| A．coming | B．will come | C．came | D．have come |
–Do remember to charge the battery 12 hours when you first use it. --_________.
| A．Made it | B．Got it | C．Understood it | D．Remembered it |
The students _____ ￡50 a year to cover the cost of books and stationery.
| A．give | B．are given |
| C．have given | D．to give |