After Steven sent some e-mails ,he______ surfing the Internet.
A.starts B. has started C. will start D. started
It’s hard to believe____ the way out of the forest without the help of the local guide.
A.what they were able to find B. what were they able to find
C. how they were able to find D. how were they able to find
The boats take different routes, but they all____ in the same place.
A.give up B. clear up C. end up D. make up
Of the two shirts, I’d like to choose the_____ one to save some money for a cap.
A.cheapest B. cheaper C. more expensive D. most expensive
I will never forget the day____ we spent in the old town with small houses.
A.who B. whom C. that D. what
In summer milk will quickly go bad_____ it is put into a fridge.
A.though B. unless C. because D. once