---Itriedmanytimes,butIstillfailedtocompletetheexperime...
來源：國語幫 1.81W
問題詳情：
--- I tried many times, but I still failed to complete the experiment.
--- Cheer up. _______ and the problem will be solved.
A. If have a little effort B. Having a little effort
C. If you have a bit effort D. A bit more effort
【回答】
D
知識點：固定句型
題型：選擇題
