Learning to speak Chinese is a challenge, for it is often difficult for one foreigner to make himself easy________.
| A．understand |
| B．to understand |
| C．understood |
| D．understanding |
If you happen to get lost in the wild, you’d better stay ______ you are and wait for help.
| A．why | B．where | C．who | D．what |
All the trees are ______ with fruit, promising a harvest year.
| A．covered | B．buried | C．surrounded | D．heavy |
—Did you catch what I said?
—Sorry. I ______ a text message just now.
| A．had answering | B．have answered | C．would answer | D．was answering |
—What’s wrong with you yesterday?
—When I was playing football, my strength ___________ and I fell down.
| A．gave up | B．gave off | C．gave out | D．gave in |
In our class there are 46 students, _____ half wear glasses.
| A．in whom | B．in them | C．of whom | D．of them |