You’d better _______ your diet rather than eat the same food all the time.
| A．vary | B．change | C．improve | D．exchange |
He ______ in Shanghai University for four years before he ______ Beijing.
| A．studied, had gone | B．had studied, went |
| C．has studied, goes | D．had studied, had gone |
Mary said it was at least five years since he ______ a good drink.
| A．enjoyed | B．was enjoying | C．had enjoyed | D．would enjoy |
Xiao Pei said she ______ Hainan for 3 months.
| A．has been in | B．had been in | C．had been to | D．had gone to |
--What are Mr and Mrs Black doing ?
---They _____ tea in the garden.
| A．are drinking | B．drank | C．have drunk | D．drink |
My mother often asks me _____early .
| A．get up | B．got up | C．getting up | D．to get up |