Li Xiayu has a bad cold these days, ______ she still keeps studying English.
| A．but | B．and | C．so | D．or |
---What delicious cakes! ---They would taste _____with butter.
| A．good | B．better | C．bad | D．worse |
Let’s go climbing if it _________ tomorrow.
| A．won’t snow | B．doesn’t snow | C．isn’t snow | D．can’t snow |
I saw him _______basketball with Jack an hour ago.
| A．plays | B．to play | C．played | D．play |
The man in the office ____be Mr. Black because he phoned me from London just now.
| A．mustn’t | B．may not | C．can’t | D．needn’t |
My father returned at 10 o’clock ______ of June 15.
| A．in the night | B．by the night | C．on the night | D．at night |